Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Denver/Boulder, CO
Issued by NWS Denver/Boulder, CO
731
FNUS55 KBOU 212041
FWFBOU
Fire Weather Forecast for Northeast and North Central Colorado
National Weather Service Denver/Boulder CO
241 PM MDT Mon Sep 21 2026
.DISCUSSION...Tonight and Tuesday...
Isolated showers/storms Tuesday afternoon and evening. Light winds
and relative humidities will remain above thresholds for tonight
and Tuesday.
LONG TERM DISCUSSION...Tuesday night through Saturday...
A disturbance will move through Wednesday and Thursday increasing
the chances for showers/thunderstorms. Wetting rains are possible
Wednesday and Thursday. For the weekend, drier conditions return
with only isolated chances for showers/storms in the higher
terrain. Fire weather conditions should be limited for this week
overall. The high country will still see a few hours of Fair to
Good smoke dispersal each afternoon.
...Thunderstorms imply strong gusty erratic winds...
...All surface winds are 20-Foot...10-Minute averaged winds...
...CWR is Chance of Wetting Rain - 0.10 inch or more liquid...
...24 HR Trends are based on averages over the respective zone
groups and may not match the actual forecast values
shown in those groups...
COZ238-221015-
Larimer County Below 6000 Feet/Northwest Weld County-
Including Fort Collins, Hereford, Loveland, Nunn,
and West Pawnee Grasslands
241 PM MDT Mon Sep 21 2026
.TONIGHT...
Sky/weather.........Partly cloudy until 2100, then mostly
cloudy(55-60%).
Chance of thunder...0 percent.
Min Temperature.....47-51.
24 hr trend......2-4 degrees warmer.
Max Humidity........90-100%.
24 hr trend......4-7% wetter.
20-foot winds.......East winds 4-12 mph.
CWR.................0 percent.
15K FT MSL winds....West 25-35 mph.
Mixing height.......2500-3500 ft AGL until 2000, then Below 1000 FT
AGL until 2100, then 1000-1500 ft AGL until
0400, then Below 1000 FT AGL until 0500, then
1000 ft AGL.
Transport winds.....Southeast 10-15 mph.
Smoke dispersal.....Poor.
.TUESDAY...
Sky/weather.........Mostly cloudy(60-65%) until 0900, then partly
cloudy(35-45%) until 1200, then mostly sunny.
Slight chance of rain showers after 1200 until
1500, then slight chance of thunderstorms.
Chance of thunder...10 percent.
Max Temperature.....76-80.
24 hr trend......4-7 degrees warmer.
Min Humidity........33-37%.
24 hr trend......Little change.
20-foot winds.......Southeast winds 5-13 mph. Gusts up to 20 mph in
the afternoon.
CWR.................0 percent.
15K FT MSL winds....West 15-25 mph.
Mixing height.......Below 1000 FT AGL until 0800, then 4000-5000 ft
AGL.
Transport winds.....Light winds until 1100, then southeast 10-15
mph.
Smoke dispersal.....Poor until 1700, then fair.
.TUESDAY NIGHT...
Sky/weather.........Partly cloudy(30-40%) until 2100, then mostly
cloudy(55-60%).
Chance of thunder...0 percent.
Min Temperature.....49-53.
24 hr trend......2-4 degrees warmer.
Max Humidity........86-96%.
24 hr trend......Little change.
20-foot winds.......Southeast winds 5-12 mph with gusts to around
25 mph until 2400, then northeast 4-8 mph.
CWR.................0 percent.
15K FT MSL winds....Southwest 15-20 mph.
Mixing height.......1500-2500 ft AGL until 2100, then Below 1000 FT
AGL.
Transport winds.....Southeast 10-15 mph until 0300, then north
until 0400, then light.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Mostly cloudy. Slight chance of thunderstorms
after 1200.
Chance of thunder...10 percent.
Max Temperature.....75-79.
24 hr trend......Little change.
Min Humidity........32-40%.
24 hr trend......Little change.
20-foot winds.......Northeast winds 4-7 mph until 1200, then
southeast 4-9 mph.
CWR.................0 percent.
15K FT MSL winds....Southwest 15-20 mph.
Mixing height.......Below 1000 FT AGL until 0800, then 4000-5000 ft
AGL.
Transport winds.....Light winds until 1200, then south around 10
mph.
Smoke dispersal.....Poor.
.WEDNESDAY NIGHT...Mostly cloudy. Slight chance of rain showers.
Lows in the lower 50s. North winds 4-8 mph.
.THURSDAY...Mostly cloudy. Chance of rain showers and slight
chance of thunderstorms. Highs in the lower 70s. East winds
5-12 mph.
.FRIDAY...Partly cloudy. Slight chance of thunderstorms. Lows in
the upper 40s. Highs in the upper 70s. South winds 4-8 mph.
.SATURDAY...Mostly clear. Lows in the lower 50s. Highs in the
lower 80s. West winds 5-12 mph.
$$
COZ239-221015-
Boulder And Jefferson Counties Below 6000 Feet/West Broomfield
County-
Including Arvada, Boulder, Golden, Lakewood, and Longmont
241 PM MDT Mon Sep 21 2026
.TONIGHT...
Sky/weather.........Partly cloudy(30-40%) until 2100, then mostly
cloudy(55-60%).
Chance of thunder...0 percent.
Min Temperature.....49-53.
24 hr trend......Little change.
Max Humidity........78-88%.
24 hr trend......2-4% wetter.
20-foot winds.......Northeast winds 4-7 mph until 2400, then
northwest 4-6 mph.
CWR.................0 percent.
15K FT MSL winds....West 20-30 mph.
Mixing height.......1500-2500 ft AGL until 2200, then Below 1000 FT
AGL.
Transport winds.....East around 10 mph until 1900, then light.
Smoke dispersal.....Poor.
.TUESDAY...
Sky/weather.........Partly cloudy(35-45%) until 0900, then mostly
sunny until 1200, then partly cloudy(40-50%).
Slight chance of rain showers after 1200 until
1500, then slight chance of thunderstorms.
Chance of thunder...10 percent.
Max Temperature.....77-81.
24 hr trend......4-7 degrees warmer.
Min Humidity........27-31%.
24 hr trend......7-10% drier.
20-foot winds.......North winds 4-6 mph until 1200, then east 4-8
mph.
CWR.................0 percent increasing to 10 percent in the
afternoon.
15K FT MSL winds....Southwest 15-20 mph.
Mixing height.......Below 1000 FT AGL until 0900, then 6000-7000 ft
AGL.
Transport winds.....Light winds until 1500, then south around 10
mph.
Smoke dispersal.....Poor.
.TUESDAY NIGHT...
Sky/weather.........Mostly cloudy. Slight chance of thunderstorms
until 2100.
Chance of thunder...10 percent.
Min Temperature.....51-55.
24 hr trend......Little change.
Max Humidity........72-82%.
24 hr trend......7-10% drier.
20-foot winds.......West winds 4-7 mph.
CWR.................0 percent.
15K FT MSL winds....Southwest 15-20 mph.
Mixing height.......2000-3000 ft AGL until 2100, then Below 1000 FT
AGL.
Transport winds.....Southwest around 10 mph until 0100, then light.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Mostly cloudy. Slight chance of rain showers
after 1200 until 1500, then slight chance of
thunderstorms.
Chance of thunder...10 percent.
Max Temperature.....76-80.
24 hr trend......Little change.
Min Humidity........32-38%.
24 hr trend......4-7% wetter.
20-foot winds.......Southwest winds 4-6 mph until 1200, then east
4-7 mph.
CWR.................0 percent.
15K FT MSL winds....Southwest around 15 mph.
Mixing height.......Below 1000 FT AGL until 0800, then 5500-6500 ft
AGL.
Transport winds.....Light winds until 1600, then northeast around
10 mph.
Smoke dispersal.....Poor.
.WEDNESDAY NIGHT...Mostly cloudy. Chance of rain showers. Lows in
the mid 50s. West winds 4-6 mph.
.THURSDAY...Mostly cloudy. Chance of rain showers and slight
chance of thunderstorms. Highs in the lower 70s. Northeast winds
4-6 mph.
.FRIDAY...Mostly cloudy. Slight chance of thunderstorms. Lows in
the lower 50s. Highs in the upper 70s. Southwest winds 4-6 mph.
.SATURDAY...Partly cloudy. Lows in the lower 50s. Highs in the
lower 80s. Southwest winds 4-8 mph.
$$
COZ240-221015-
North Douglas County Below 6000 Feet/Denver/West Adams and
Arapahoe Counties/East Broomfield County-
Including Aurora, Brighton, City of Denver,
Denver International Airport, Highlands Ranch, Littleton,
and Parker
241 PM MDT Mon Sep 21 2026
.TONIGHT...
Sky/weather.........Partly cloudy(35-45%) until 2100, then mostly
cloudy(60-65%) until 0300, then partly
cloudy(40-50%).
Chance of thunder...0 percent.
Min Temperature.....51-55.
24 hr trend......2-4 degrees warmer.
Max Humidity........81-91%.
24 hr trend......2-4% drier.
20-foot winds.......Southeast winds 5-13 mph with gusts to around
20 mph.
CWR.................0 percent.
15K FT MSL winds....West 20-30 mph.
Mixing height.......1500-2500 ft AGL until 0100, then Below 1000 FT
AGL until 0200, then 1000 ft AGL until 0300,
then Below 1000 FT AGL.
Transport winds.....Southeast around 10 mph until 2400, then south.
Smoke dispersal.....Poor.
.TUESDAY...
Sky/weather.........Partly cloudy(35-45%) until 0900, then mostly
sunny until 1200, then partly cloudy(35-45%).
Slight chance of rain showers after 1200 until
1500, then slight chance of thunderstorms.
Chance of thunder...10 percent.
Max Temperature.....79-83.
24 hr trend......4-7 degrees warmer.
Min Humidity........26-30%.
24 hr trend......4-7% drier.
20-foot winds.......Southwest winds 4-8 mph until 1200, then
southeast 4-9 mph with gusts to around 20 mph.
CWR.................0 percent increasing to 10 percent in the
afternoon.
15K FT MSL winds....Southwest 15-20 mph.
Mixing height.......Below 1000 FT AGL until 0800, then 7000-8000 ft
AGL.
Transport winds.....Light winds until 1400, then south around 10
mph.
Smoke dispersal.....Poor until 1500, then fair.
.TUESDAY NIGHT...
Sky/weather.........Mostly cloudy(60-65%). Slight chance of
thunderstorms until 2100.
Chance of thunder...20 percent.
Min Temperature.....53-57.
24 hr trend......Little change.
Max Humidity........73-83%.
24 hr trend......4-7% drier.
20-foot winds.......South winds 5-13 mph. Gusts up to 25 mph in the
evening.
CWR.................0 percent.
15K FT MSL winds....Southwest 15-20 mph.
Mixing height.......1500-2500 ft AGL until 2400, then Below 1000 FT
AGL.
Transport winds.....South 10-15 mph until 0500, then light.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Mostly cloudy.
Chance of thunder...0 percent.
Max Temperature.....77-81.
24 hr trend......Little change.
Min Humidity........29-33%.
24 hr trend......2-4% wetter.
20-foot winds.......Southwest winds 4-7 mph until 1200, then
southeast 4-8 mph with gusts to around 20 mph.
CWR.................0 percent.
15K FT MSL winds....South around 15 mph.
Mixing height.......Below 1000 FT AGL until 0800, then 6000-7000 ft
AGL.
Transport winds.....Light winds until 1200, then southeast around
10 mph.
Smoke dispersal.....Poor.
.WEDNESDAY NIGHT...Mostly cloudy. Chance of rain showers. Lows in
the mid 50s. Southwest winds 4-7 mph.
.THURSDAY...Mostly cloudy. Chance of rain showers and slight
chance of thunderstorms. Highs in the lower 70s. Northeast winds
4-8 mph.
.FRIDAY...Partly cloudy. Slight chance of thunderstorms. Lows in
the lower 50s. Highs around 80. South winds 4-7 mph.
.SATURDAY...Partly cloudy. Lows in the mid 50s. Highs in the
lower 80s. South winds 4-8 mph.
$$
COZ241-221015-
Elbert/Central and East Douglas Counties Above 6000 Feet-
Including Castle Rock, Elbert, Fondis, Kiowa, and Larkspur
241 PM MDT Mon Sep 21 2026
.TONIGHT...
Sky/weather.........Partly cloudy(35-45%) until 2100, then mostly
cloudy(60-65%). Slight chance of rain showers
after 2200.
Chance of thunder...0 percent.
Min Temperature.....49-53.
24 hr trend......2-4 degrees warmer.
Max Humidity........90-100%.
24 hr trend......Little change.
20-foot winds.......South winds 8-16 mph with gusts to around 25
mph.
CWR.................0 percent increasing to 10 percent after
midnight.
15K FT MSL winds....West 20-30 mph.
Mixing height.......1500-2500 ft AGL until 0300, then Below 1000 FT
AGL.
Transport winds.....South 10-15 mph.
Smoke dispersal.....Poor.
.TUESDAY...
Sky/weather.........Partly cloudy(40-50%). Slight chance of rain
showers after 1200 until 1500, then slight
chance of thunderstorms.
Chance of thunder...20 percent.
Max Temperature.....73-79.
24 hr trend......4-7 degrees warmer.
Min Humidity........31-41%.
24 hr trend......7-10% drier.
20-foot winds.......South winds 8-16 mph with gusts to around 25
mph.
CWR.................0 percent increasing to 10 percent in the
afternoon.
15K FT MSL winds....Southwest 15-20 mph.
Mixing height.......6000-7000 ft AGL.
Transport winds.....South 10-15 mph.
Smoke dispersal.....Poor until 1300, then good.
.TUESDAY NIGHT...
Sky/weather.........Mostly cloudy. Slight chance of thunderstorms
until 2100.
Chance of thunder...20 percent.
Min Temperature.....50-54.
24 hr trend......Little change.
Max Humidity........84-94%.
24 hr trend......2-4% drier.
20-foot winds.......South winds 8-16 mph with gusts to around 30
mph.
CWR.................0 percent.
15K FT MSL winds....Southwest 15-20 mph.
Mixing height.......1500-2500 ft AGL until 0100, then Below 1000 FT
AGL until 0300, then 1000 ft AGL until 0400,
then Below 1000 FT AGL.
Transport winds.....South around 15 mph.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Mostly cloudy. Slight chance of rain showers
after 1200 until 1500, then slight chance of
thunderstorms.
Chance of thunder...20 percent.
Max Temperature.....71-77.
24 hr trend......Little change.
Min Humidity........36-46%.
24 hr trend......2-4% wetter.
20-foot winds.......South winds 4-12 mph with gusts to around 25
mph.
CWR.................0 percent increasing to 10 percent in the
afternoon.
15K FT MSL winds....Southwest 20-30 mph.
Mixing height.......Below 1000 FT AGL until 0800, then 4500-5500 ft
AGL.
Transport winds.....South 10-15 mph.
Smoke dispersal.....Poor.
.WEDNESDAY NIGHT...Mostly cloudy. Chance of rain showers. Lows in
the lower 50s. Southwest winds 4-8 mph.
.THURSDAY...Mostly cloudy. Chance of rain showers and slight
chance of thunderstorms. Highs in the upper 60s. North winds
4-9 mph.
.FRIDAY...Mostly cloudy. Chance of rain showers and slight chance
of thunderstorms. Lows in the upper 40s. Highs in the mid 70s.
Southwest winds 4-8 mph.
.SATURDAY...Partly cloudy. Lows around 50. Highs in the upper
70s. Southwest winds 4-8 mph.
$$
COZ242-221015-
Northeast Weld County-
Including Briggsdale, East Pawnee Grasslands, Grover,
Pawnee Buttes, Raymer, and Stoneham
241 PM MDT Mon Sep 21 2026
.TONIGHT...
Sky/weather.........Partly cloudy(40-50%) until 2400, then mostly
cloudy(55-60%).
Chance of thunder...0 percent.
Min Temperature.....48-52.
24 hr trend......2-4 degrees warmer.
Max Humidity........96-99%.
24 hr trend......2-4% wetter.
20-foot winds.......Southeast winds 8-15 mph.
CWR.................0 percent.
15K FT MSL winds....West 25-35 mph.
Mixing height.......1500-2500 ft AGL until 2300, then Below 1000 FT
AGL until 2400, then 1000 ft AGL until 0500,
then Below 1000 FT AGL.
Transport winds.....East 10-15 mph until 2400, then southeast 15-20
mph.
Smoke dispersal.....Poor.
.TUESDAY...
Sky/weather.........Mostly cloudy(60-65%) until 0900, then partly
cloudy(40-50%) until 1200, then mostly sunny.
Chance of thunder...0 percent.
Max Temperature.....76-80.
24 hr trend......4-7 degrees warmer.
Min Humidity........35-43%.
24 hr trend......Little change.
20-foot winds.......Southeast winds 10-18 mph with gusts to around
30 mph.
CWR.................0 percent.
15K FT MSL winds....West 15-25 mph.
Mixing height.......Below 1000 FT AGL until 0800, then 4000-5000 ft
AGL.
Transport winds.....South around 15 mph.
Smoke dispersal.....Poor until 1500, then good.
.TUESDAY NIGHT...
Sky/weather.........Partly cloudy(30-40%) until 2400, then mostly
cloudy.
Chance of thunder...0 percent.
Min Temperature.....51-55.
24 hr trend......2-4 degrees warmer.
Max Humidity........100%.
24 hr trend......2-4% wetter.
20-foot winds.......Southeast winds 11-19 mph with gusts to around
30 mph.
CWR.................0 percent.
15K FT MSL winds....Southwest 15-20 mph.
Mixing height.......1500-2500 ft AGL until 0100, then Below 1000 FT
AGL until 0300, then 1000 ft AGL until 0400,
then Below 1000 FT AGL.
Transport winds.....Southeast 15-20 mph until 0500, then south
around 10 mph.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Mostly cloudy.
Chance of thunder...0 percent.
Max Temperature.....77-81.
24 hr trend......Little change.
Min Humidity........31-41%.
24 hr trend......Little change.
20-foot winds.......Southeast winds 4-8 mph.
CWR.................0 percent.
15K FT MSL winds....Southwest 15-20 mph.
Mixing height.......1000 ft AGL until 0700, then Below 1000 FT AGL
until 0800, then 3500-4500 ft AGL.
Transport winds.....South around 10 mph.
Smoke dispersal.....Poor.
.WEDNESDAY NIGHT...Mostly cloudy. Slight chance of rain showers.
Lows in the lower 50s. East winds 4-8 mph.
.THURSDAY...Mostly cloudy. Chance of rain showers and slight
chance of thunderstorms. Highs in the mid 70s. Northeast winds
5-12 mph.
.FRIDAY...Partly cloudy. Lows around 50. Highs in the upper 70s.
South winds 4-8 mph.
.SATURDAY...Partly cloudy. Lows in the lower 50s. Highs in the
lower 80s. Northwest winds 5-12 mph.
$$
COZ243-221015-
Central and South Weld County-
Including Eaton, Fort Lupton, Greeley, and Roggen
241 PM MDT Mon Sep 21 2026
.TONIGHT...
Sky/weather.........Mostly clear until 2100, then mostly
cloudy(50-60%).
Chance of thunder...0 percent.
Min Temperature.....49-53.
24 hr trend......Little change.
Max Humidity........89-99%.
24 hr trend......Little change.
20-foot winds.......Southeast winds 6-14 mph with gusts to around
20 mph.
CWR.................0 percent.
15K FT MSL winds....West 20-30 mph.
Mixing height.......2500-3500 ft AGL until 2000, then Below 1000 FT
AGL until 2300, then 1000 ft AGL until 0100,
then Below 1000 FT AGL.
Transport winds.....Southeast 10-15 mph.
Smoke dispersal.....Poor.
.TUESDAY...
Sky/weather.........Partly cloudy(40-50%) until 0900, then mostly
sunny until 1500, then partly cloudy(30-35%).
Chance of thunder...0 percent.
Max Temperature.....79-83.
24 hr trend......4-7 degrees warmer.
Min Humidity........30-36%.
24 hr trend......Little change.
20-foot winds.......Southeast winds 5-13 mph. Gusts up to 20 mph in
the afternoon.
CWR.................0 percent.
15K FT MSL winds....West 15-25 mph.
Mixing height.......Below 1000 FT AGL until 0800, then 5000-6000 ft
AGL.
Transport winds.....South around 10 mph until 0700, then light
until 1300, then southeast 10-15 mph.
Smoke dispersal.....Poor until 1600, then fair.
.TUESDAY NIGHT...
Sky/weather.........Partly cloudy(40-50%) until 2100, then mostly
cloudy(50-60%).
Chance of thunder...0 percent.
Min Temperature.....51-55.
24 hr trend......Little change.
Max Humidity........90-100%.
24 hr trend......4-7% wetter.
20-foot winds.......Southeast winds 5-13 mph with gusts to around
25 mph.
CWR.................0 percent.
15K FT MSL winds....Southwest 15-20 mph.
Mixing height.......1000-2000 ft AGL until 2000, then Below 1000 FT
AGL until 2100, then 1000 ft AGL until 2200,
then Below 1000 FT AGL.
Transport winds.....Southeast 10-15 mph until 0100, then south
until 0500, then light.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Mostly cloudy.
Chance of thunder...0 percent.
Max Temperature.....78-82.
24 hr trend......Little change.
Min Humidity........33-37%.
24 hr trend......Little change.
20-foot winds.......West winds 4-6 mph until 1200, then southeast
4-8 mph with gusts to around 20 mph.
CWR.................0 percent.
15K FT MSL winds....Southwest around 15 mph.
Mixing height.......Below 1000 FT AGL until 0800, then 4000-5000 ft
AGL.
Transport winds.....Light winds until 1300, then southeast around
10 mph.
Smoke dispersal.....Poor.
.WEDNESDAY NIGHT...Mostly cloudy. Slight chance of rain showers.
Lows in the mid 50s. East winds 4-8 mph.
.THURSDAY...Mostly cloudy. Chance of rain showers and slight
chance of thunderstorms. Highs in the mid 70s. Northeast winds
4-8 mph.
.FRIDAY...Partly cloudy. Lows around 50. Highs around 80. South
winds 4-7 mph.
.SATURDAY...Partly cloudy. Lows in the lower 50s. Highs in the
mid 80s. East winds 4-8 mph.
$$
COZ244-221015-
Morgan County-
Including Brush, Fort Morgan, Goodrich, and Wiggins
241 PM MDT Mon Sep 21 2026
.TONIGHT...
Sky/weather.........Partly cloudy(30-40%) until 2400, then mostly
cloudy(50-60%). Slight chance of rain showers
after 2400.
Chance of thunder...0 percent.
Min Temperature.....50-54.
24 hr trend......2-4 degrees warmer.
Max Humidity........94-98%.
24 hr trend......Little change.
20-foot winds.......Southeast winds 8-14 mph with gusts to around
20 mph.
CWR.................0 percent.
15K FT MSL winds....West 20-30 mph.
Mixing height.......2500-3500 ft AGL until 2000, then Below 1000 FT
AGL until 2400, then 1000 ft AGL until 0200,
then Below 1000 FT AGL.
Transport winds.....Southeast 10-15 mph.
Smoke dispersal.....Poor.
.TUESDAY...
Sky/weather.........Partly cloudy(30-40%) until 1200, then mostly
sunny.
Chance of thunder...0 percent.
Max Temperature.....78-82.
24 hr trend......4-7 degrees warmer.
Min Humidity........38-42%.
24 hr trend......2-4% wetter.
20-foot winds.......Southeast winds 10-18 mph with gusts to around
25 mph.
CWR.................0 percent.
15K FT MSL winds....West 15-20 mph.
Mixing height.......Below 1000 FT AGL until 0800, then 4500-5500 ft
AGL.
Transport winds.....South 15-20 mph.
Smoke dispersal.....Poor until 1300, then good.
.TUESDAY NIGHT...
Sky/weather.........Partly cloudy(30-40%) until 2400, then mostly
cloudy. Slight chance of thunderstorms after
1900 until 2000.
Chance of thunder...10 percent.
Min Temperature.....53-57.
24 hr trend......2-4 degrees warmer.
Max Humidity........95-99%.
24 hr trend......2-4% wetter.
20-foot winds.......Southeast winds 13-23 mph with gusts to around
35 mph.
CWR.................0 percent.
15K FT MSL winds....Southwest 15-20 mph.
Mixing height.......1500-2500 ft AGL until 0100, then Below 1000 FT
AGL until 0300, then 1500 ft AGL until 0400,
then Below 1000 FT AGL.
Transport winds.....South 15-20 mph.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Mostly cloudy.
Chance of thunder...0 percent.
Max Temperature.....78-82.
24 hr trend......Little change.
Min Humidity........37-41%.
24 hr trend......Little change.
20-foot winds.......South winds 5-12 mph with gusts to around 25
mph.
CWR.................0 percent.
15K FT MSL winds....Southwest 20-30 mph.
Mixing height.......1000 ft AGL until 0700, then Below 1000 FT AGL
until 0800, then 4000-5000 ft AGL.
Transport winds.....South 10-15 mph.
Smoke dispersal.....Poor.
.WEDNESDAY NIGHT...Mostly cloudy. Slight chance of rain showers.
Lows in the mid 50s. Southeast winds 4-9 mph.
.THURSDAY...Mostly cloudy. Chance of rain showers and slight
chance of thunderstorms. Highs in the mid 70s. Northeast winds
4-9 mph.
.FRIDAY...Partly cloudy. Slight chance of thunderstorms. Lows in
the lower 50s. Highs around 80. South winds 4-8 mph.
.SATURDAY...Partly cloudy. Lows in the lower 50s. Highs in the
mid 80s. Northwest winds 4-13 mph.
$$
COZ245-221015-
Central and East Adams and Arapahoe Counties-
Including Bennett, Byers, Deer Trail, and Leader
241 PM MDT Mon Sep 21 2026
.TONIGHT...
Sky/weather.........Partly cloudy(35-45%) until 2100, then mostly
cloudy(50-60%). Slight chance of rain showers
after 2300.
Chance of thunder...0 percent.
Min Temperature.....52-56.
24 hr trend......2-4 degrees warmer.
Max Humidity........90-98%.
24 hr trend......Little change.
20-foot winds.......Southeast winds 9-14 mph with gusts to around
20 mph.
CWR.................0 percent increasing to 10 percent after
midnight.
15K FT MSL winds....West 20-30 mph.
Mixing height.......2000-3000 ft AGL until 2100, then Below 1000 FT
AGL until 2200, then 1000 ft AGL until 0100,
then Below 1000 FT AGL.
Transport winds.....Southeast 10-15 mph until 0400, then south.
Smoke dispersal.....Poor.
.TUESDAY...
Sky/weather.........Partly cloudy(40-50%) until 0900, then mostly
sunny until 1500, then partly cloudy.
Chance of thunder...0 percent.
Max Temperature.....77-81.
24 hr trend......4-7 degrees warmer.
Min Humidity........32-40%.
24 hr trend......Little change.
20-foot winds.......South winds 9-17 mph with gusts to around 30
mph.
CWR.................0 percent.
15K FT MSL winds....Southwest 15-20 mph.
Mixing height.......Below 1000 FT AGL until 0800, then 5500-6500 ft
AGL.
Transport winds.....South 15-20 mph.
Smoke dispersal.....Poor until 1400, then good.
.TUESDAY NIGHT...
Sky/weather.........Partly cloudy(40-50%) until 2100, then mostly
cloudy(60-65%).
Chance of thunder...0 percent.
Min Temperature.....54-58.
24 hr trend......Little change.
Max Humidity........83-93%.
24 hr trend......4-7% drier.
20-foot winds.......South winds 13-20 mph with gusts to around 30
mph.
CWR.................0 percent.
15K FT MSL winds....Southwest around 15 mph.
Mixing height.......1000-2000 ft AGL until 0100, then Below 1000 FT
AGL until 0300, then 1000 ft AGL until 0400,
then Below 1000 FT AGL.
Transport winds.....South 15-20 mph.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Mostly cloudy.
Chance of thunder...0 percent.
Max Temperature.....76-80.
24 hr trend......Little change.
Min Humidity........34-40%.
24 hr trend......2-4% drier.
20-foot winds.......South winds 6-14 mph. Gusts up to 30 mph
decreasing to 20 mph in the afternoon.
CWR.................0 percent.
15K FT MSL winds....South 20-30 mph.
Mixing height.......1000 ft AGL until 0700, then Below 1000 FT AGL
until 0800, then 4000-5000 ft AGL.
Transport winds.....South 10-15 mph.
Smoke dispersal.....Poor.
.WEDNESDAY NIGHT...Mostly cloudy. Slight chance of rain showers.
Lows in the mid 50s. South winds 5-12 mph.
.THURSDAY...Mostly cloudy. Chance of rain showers and slight
chance of thunderstorms. Highs in the lower 70s. Northeast winds
4-13 mph.
.FRIDAY...Partly cloudy. Slight chance of thunderstorms. Lows in
the lower 50s. Highs in the upper 70s. South winds 4-9 mph.
.SATURDAY...Partly cloudy. Lows in the mid 50s. Highs in the
lower 80s. Southwest winds 4-9 mph.
$$
COZ248-221015-
Logan County-
Including Crook, Merino, Sterling, and Peetz
241 PM MDT Mon Sep 21 2026
.TONIGHT...
Sky/weather.........Mostly clear until 2400, then mostly
cloudy(50-60%).
Chance of thunder...0 percent.
Min Temperature.....49-53.
24 hr trend......Little change.
Max Humidity........94-98%.
24 hr trend......2-4% wetter.
20-foot winds.......East winds 7-14 mph with gusts to around 20
mph.
CWR.................0 percent.
15K FT MSL winds....West 25-35 mph.
Mixing height.......3500 ft AGL until 1900, then Below 1000 FT AGL
until 2300, then 1000 ft AGL.
Transport winds.....East 10-15 mph until 0400, then southeast.
Smoke dispersal.....Poor.
.TUESDAY...
Sky/weather.........Mostly cloudy(60-65%) until 1200, then partly
cloudy(35-45%).
Chance of thunder...0 percent.
Max Temperature.....73-79.
24 hr trend......Little change.
Min Humidity........44-54%.
24 hr trend......7-10% wetter.
20-foot winds.......Southeast winds 12-22 mph with gusts to around
35 mph.
CWR.................0 percent.
15K FT MSL winds....West 15-25 mph.
Mixing height.......4000-5000 ft AGL.
Transport winds.....South 15-20 mph.
Smoke dispersal.....Poor until 1300, then good.
.TUESDAY NIGHT...
Sky/weather.........Partly cloudy(30-40%) until 2400, then mostly
cloudy. Slight chance of thunderstorms after
2000 until 2100. Slight chance of rain showers
after 0100 until 0300.
Chance of thunder...10 percent.
Min Temperature.....54-58.
24 hr trend......4-7 degrees warmer.
Max Humidity........100%.
24 hr trend......2-4% wetter.
20-foot winds.......Breezy. Southeast winds 14-24 mph with gusts to
around 40 mph.
CWR.................0 percent.
15K FT MSL winds....Southwest 15-20 mph.
Mixing height.......1500-2500 ft AGL until 0100, then Below 1000 FT
AGL until 0300, then 1000-1500 ft AGL.
Transport winds.....Southeast 15-20 mph.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Mostly cloudy. Slight chance of rain showers
after 1200 until 1500, then slight chance of
thunderstorms.
Chance of thunder...10 percent.
Max Temperature.....77-81.
24 hr trend......4-7 degrees warmer.
Min Humidity........41-49%.
24 hr trend......7-10% drier.
20-foot winds.......South winds 6-14 mph. Gusts up to 30 mph
decreasing to 20 mph in the afternoon.
CWR.................0 percent increasing to 10 percent in the
afternoon.
15K FT MSL winds....Southwest 20-30 mph.
Mixing height.......3500-4500 ft AGL.
Transport winds.....South 10-15 mph.
Smoke dispersal.....Poor.
.WEDNESDAY NIGHT...Mostly cloudy. Slight chance of thunderstorms.
Lows in the mid 50s. South winds 4-8 mph.
.THURSDAY...Mostly cloudy. Chance of rain showers and slight
chance of thunderstorms. Highs in the lower 70s. East winds
4-9 mph.
.FRIDAY...Partly cloudy. Slight chance of thunderstorms. Lows in
the lower 50s. Highs in the upper 70s. South winds 4-8 mph.
.SATURDAY...Mostly clear. Lows in the mid 50s. Highs in the mid
80s. Northwest winds 4-9 mph.
$$
COZ249-221015-
Washington County-
Including Akron, Cope, Last Chance, and Otis
241 PM MDT Mon Sep 21 2026
.TONIGHT...
Sky/weather.........Partly cloudy(35-45%) until 0300, then mostly
cloudy(50-60%). Slight chance of rain showers
after 2300.
Chance of thunder...0 percent.
Min Temperature.....51-55.
24 hr trend......Little change.
Max Humidity........96-99%.
24 hr trend......Little change.
20-foot winds.......Southeast winds 8-15 mph.
CWR.................0 percent.
15K FT MSL winds....West 20-30 mph.
Mixing height.......2500-3500 ft AGL until 2000, then Below 1000 FT
AGL until 2200, then 1000 ft AGL until 2300,
then Below 1000 FT AGL until 2400, then 1000 ft
AGL until 0400, then Below 1000 FT AGL.
Transport winds.....Southeast 10-15 mph.
Smoke dispersal.....Poor.
.TUESDAY...
Sky/weather.........Mostly cloudy(50-60%) until 0900, then partly
cloudy(40-50%).
Chance of thunder...0 percent.
Max Temperature.....75-79.
24 hr trend......2-4 degrees warmer.
Min Humidity........42-48%.
24 hr trend......4-7% wetter.
20-foot winds.......Breezy. South winds 14-24 mph with gusts to
around 35 mph.
CWR.................0 percent.
15K FT MSL winds....West 15-20 mph.
Mixing height.......Below 1000 FT AGL until 0700, then 4500-5500 ft
AGL.
Transport winds.....South 15-20 mph until 1600, then around 25 mph.
Smoke dispersal.....Poor until 1200, then good.
.TUESDAY NIGHT...
Sky/weather.........Partly cloudy(40-50%) until 2100, then mostly
cloudy(60-65%).
Chance of thunder...0 percent.
Min Temperature.....54-58.
24 hr trend......2-4 degrees warmer.
Max Humidity........90-100%.
24 hr trend......2-4% wetter.
20-foot winds.......Breezy. South winds 18-28 mph with gusts to
around 40 mph.
CWR.................0 percent.
15K FT MSL winds....Southwest 15-20 mph.
Mixing height.......2000-3000 ft AGL until 0100, then Below 1000 FT
AGL until 0200, then 1000-1500 ft AGL until
0400, then Below 1000 FT AGL until 0500, then
1500 ft AGL.
Transport winds.....South around 25 mph.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Mostly cloudy. Slight chance of rain showers
after 1200 until 1500, then slight chance of
thunderstorms.
Chance of thunder...10 percent.
Max Temperature.....77-81.
24 hr trend......Little change.
Min Humidity........39-43%.
24 hr trend......2-4% drier.
20-foot winds.......Breezy. South winds 15-25 mph with gusts to
around 40 mph.
CWR.................0 percent increasing to 10 percent in the
afternoon.
15K FT MSL winds....Southwest 25-35 mph.
Mixing height.......3500-4500 ft AGL.
Transport winds.....South 15-20 mph.
Smoke dispersal.....Poor.
.WEDNESDAY NIGHT...Mostly cloudy. Chance of rain showers and
slight chance of thunderstorms. Lows in the mid 50s. South winds
8-15 mph.
.THURSDAY...Mostly cloudy. Chance of rain showers and slight
chance of thunderstorms. Highs in the lower 70s. Northeast winds
6-13 mph.
.FRIDAY...Partly cloudy. Slight chance of thunderstorms. Lows in
the lower 50s. Highs in the upper 70s. South winds 6-13 mph.
.SATURDAY...Mostly clear. Lows in the mid 50s. Highs in the mid
80s. Northwest winds 6-13 mph.
$$
COZ250-221015-
Sedgwick County-
Including Julesburg, Ovid, and Sedgwick
241 PM MDT Mon Sep 21 2026
.TONIGHT...
Sky/weather.........Partly cloudy until 2400, then mostly
cloudy(55-60%).
Chance of thunder...0 percent.
Min Temperature.....50-54.
24 hr trend......Little change.
Max Humidity........91-95%.
24 hr trend......2-4% drier.
20-foot winds.......East winds 6-14 mph. Gusts up to 20 mph after
midnight.
CWR.................0 percent.
15K FT MSL winds....Northwest 25-35 mph.
Mixing height.......3000 ft AGL until 1900, then Below 1000 FT AGL
until 2200, then 1000 ft AGL.
Transport winds.....East 10-15 mph until 0100, then southeast.
Smoke dispersal.....Poor.
.TUESDAY...
Sky/weather.........Mostly cloudy(60-65%). Chance of rain showers
until 1200.
Chance of thunder...0 percent.
Max Temperature.....70-74.
24 hr trend......Little change.
Min Humidity........58-64%.
24 hr trend......7-10% wetter.
20-foot winds.......Southeast winds 11-21 mph with gusts to around
35 mph.
CWR.................10 percent decreasing to 0 percent in the
afternoon.
15K FT MSL winds....West 20-30 mph.
Mixing height.......3000-4000 ft AGL.
Transport winds.....Southeast 15-20 mph until 1600, then around 25
mph.
Smoke dispersal.....Poor until 1500, then good.
.TUESDAY NIGHT...
Sky/weather.........Partly cloudy(40-50%) until 2100, then mostly
cloudy(60-65%). Slight chance of rain showers
after 0100 until 0300.
Chance of thunder...0 percent.
Min Temperature.....Around 56.
24 hr trend......2-4 degrees warmer.
Max Humidity........100%.
24 hr trend......4-7% wetter.
20-foot winds.......Breezy. Southeast winds 17-27 mph with gusts to
around 35 mph.
CWR.................0 percent.
15K FT MSL winds....Southwest 15-20 mph.
Mixing height.......1000-2000 ft AGL.
Transport winds.....Southeast 20-25 mph.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Mostly cloudy. Slight chance of rain showers
until 1200, then chance of rain showers. Slight
chance of thunderstorms after 1500.
Chance of thunder...10 percent.
Max Temperature.....Around 78.
24 hr trend......4-7 degrees warmer.
Min Humidity........53-59%.
24 hr trend......2-4% drier.
20-foot winds.......South winds 13-23 mph with gusts to around 30
mph.
CWR.................0 percent increasing to 10 percent in the
afternoon.
15K FT MSL winds....Southwest 25-35 mph.
Mixing height.......2500-3500 ft AGL.
Transport winds.....South 15-20 mph.
Smoke dispersal.....Poor.
.WEDNESDAY NIGHT...Mostly cloudy. Chance of rain showers and
slight chance of thunderstorms. Lows in the mid 50s. South winds
7-14 mph.
.THURSDAY...Mostly cloudy. Chance of rain showers and slight
chance of thunderstorms. Highs in the lower 70s. East winds
4-9 mph.
.FRIDAY...Mostly cloudy. Chance of rain showers and slight chance
of thunderstorms. Lows in the mid 50s. Highs in the mid 70s.
South winds 6-12 mph.
.SATURDAY...Partly cloudy. Lows in the mid 50s. Highs in the
lower 80s. Northwest winds 5-12 mph.
$$
COZ251-221015-
Phillips County-
Including Amherst, Haxtun, and Holyoke
241 PM MDT Mon Sep 21 2026
.TONIGHT...
Sky/weather.........Mostly clear until 2400, then mostly
cloudy(50-60%).
Chance of thunder...0 percent.
Min Temperature.....50-54.
24 hr trend......Little change.
Max Humidity........91-97%.
24 hr trend......Little change.
20-foot winds.......East winds 5-13 mph. Gusts up to 20 mph after
midnight.
CWR.................0 percent.
15K FT MSL winds....Northwest 25-35 mph.
Mixing height.......3500 ft AGL until 1900, then Below 1000 FT AGL
until 2200, then 1000-1500 ft AGL.
Transport winds.....East 10-15 mph until 2300, then around 15 mph.
Smoke dispersal.....Poor.
.TUESDAY...
Sky/weather.........Mostly cloudy(60-65%). Slight chance of rain
showers until 1500. Slight chance of
thunderstorms after 1500.
Chance of thunder...10 percent.
Max Temperature.....72-76.
24 hr trend......Little change.
Min Humidity........53-59%.
24 hr trend......7-10% wetter.
20-foot winds.......Southeast winds 12-22 mph with gusts to around
35 mph.
CWR.................0 percent.
15K FT MSL winds....West 20-30 mph.
Mixing height.......3500-4500 ft AGL.
Transport winds.....Southeast 15-20 mph until 1500, then around 25
mph.
Smoke dispersal.....Poor until 1400, then good.
.TUESDAY NIGHT...
Sky/weather.........Partly cloudy(35-45%) until 2100, then mostly
cloudy(60-65%). Slight chance of thunderstorms
after 2000 until 2200. Slight chance of rain
showers after 0200 until 0300.
Chance of thunder...20 percent.
Min Temperature.....Around 56.
24 hr trend......2-4 degrees warmer.
Max Humidity........100%.
24 hr trend......4-7% wetter.
20-foot winds.......Breezy. Southeast winds 16-26 mph with gusts to
around 35 mph.
CWR.................0 percent.
15K FT MSL winds....Southwest 15-20 mph.
Mixing height.......1500-2500 ft AGL.
Transport winds.....South 20-25 mph.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Mostly cloudy. Chance of rain showers after
1200. Slight chance of thunderstorms after
1500.
Chance of thunder...10 percent.
Max Temperature.....76-80.
24 hr trend......2-4 degrees warmer.
Min Humidity........48-56%.
24 hr trend......Little change.
20-foot winds.......South winds 13-22 mph with gusts to around 30
mph.
CWR.................0 percent increasing to 10 percent in the
afternoon.
15K FT MSL winds....Southwest 25-35 mph.
Mixing height.......3000-4000 ft AGL.
Transport winds.....South 15-20 mph.
Smoke dispersal.....Poor.
.WEDNESDAY NIGHT...Mostly cloudy. Chance of thunderstorms. Lows
in the mid 50s. South winds 7-14 mph.
.THURSDAY...Mostly cloudy. Chance of rain showers and slight
chance of thunderstorms. Highs in the lower 70s. East winds
4-13 mph.
.FRIDAY...Mostly cloudy. Chance of rain showers and slight chance
of thunderstorms. Lows in the mid 50s. Highs in the upper 70s.
South winds 5-12 mph.
.SATURDAY...Partly cloudy. Lows in the mid 50s. Highs in the
lower 80s. Northwest winds 4-13 mph.
$$
COZ246-221015-
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County-
Including Agate, Hugo, Limon, and Matheson
241 PM MDT Mon Sep 21 2026
.TONIGHT...
Sky/weather.........Partly cloudy(40-50%) until 2100, then mostly
cloudy(60-65%). Slight chance of rain showers
after 2300.
Chance of thunder...0 percent.
Min Temperature.....50-54.
24 hr trend......2-4 degrees warmer.
Max Humidity........96-99%.
24 hr trend......Little change.
20-foot winds.......Southeast winds 7-15 mph with gusts to around
25 mph.
CWR.................0 percent increasing to 10 percent after
midnight.
15K FT MSL winds....West 20-30 mph.
Mixing height.......2500-3500 ft AGL until 2000, then Below 1000 FT
AGL until 2200, then 1000 ft AGL until 2400,
then Below 1000 FT AGL until 0200, then 1000 ft
AGL until 0300, then Below 1000 FT AGL until
0400, then 1000 ft AGL.
Transport winds.....South 10-15 mph.
Smoke dispersal.....Poor.
.TUESDAY...
Sky/weather.........Mostly cloudy(50-60%) until 0900, then partly
cloudy(50-60%).
Chance of thunder...0 percent.
Max Temperature.....73-77.
24 hr trend......4-7 degrees warmer.
Min Humidity........40-48%.
24 hr trend......4-7% drier.
20-foot winds.......South winds 13-23 mph with gusts to around 35
mph.
CWR.................0 percent.
15K FT MSL winds....Southwest 15-20 mph.
Mixing height.......4500-5500 ft AGL.
Transport winds.....South 15-20 mph.
Smoke dispersal.....Poor until 1300, then good.
.TUESDAY NIGHT...
Sky/weather.........Partly cloudy(50-60%) until 2100, then mostly
cloudy.
Chance of thunder...0 percent.
Min Temperature.....52-56.
24 hr trend......Little change.
Max Humidity........94-98%.
24 hr trend......2-4% wetter.
20-foot winds.......Breezy. South winds 17-27 mph with gusts to
around 40 mph.
CWR.................0 percent.
15K FT MSL winds....Southwest 15-20 mph.
Mixing height.......1500-2500 ft AGL until 0100, then Below 1000 FT
AGL until 0200, then 1000-1500 ft AGL until
0400, then Below 1000 FT AGL until 0500, then
1500 ft AGL.
Transport winds.....South 20-25 mph.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Mostly cloudy. Slight chance of thunderstorms
after 1200.
Chance of thunder...20 percent.
Max Temperature.....73-77.
24 hr trend......Little change.
Min Humidity........40-48%.
24 hr trend......Little change.
20-foot winds.......Breezy. South winds 14-24 mph with gusts to
around 40 mph.
CWR.................0 percent increasing to 10 percent in the
afternoon.
15K FT MSL winds....Southwest 25-35 mph.
Mixing height.......3500-4500 ft AGL.
Transport winds.....South 20-25 mph until 1200, then around 15 mph.
Smoke dispersal.....Poor until 1500, then fair.
.WEDNESDAY NIGHT...Mostly cloudy. Rain showers likely. Lows in
the lower 50s. South winds 7-14 mph.
.THURSDAY...Mostly cloudy. Chance of rain showers and slight
chance of thunderstorms. Highs around 70. Northeast winds
5-12 mph.
.FRIDAY...Partly cloudy. Chance of rain showers and slight chance
of thunderstorms. Lows around 50. Highs in the mid 70s. South
winds 4-9 mph.
.SATURDAY...Partly cloudy. Lows in the lower 50s. Highs in the
lower 80s. Northwest winds 4-9 mph.
$$
COZ247-221015-
Southeast Elbert County Below 6000 Feet/South Lincoln County-
Including Forder, Karval, Kutch, and Punkin Center
241 PM MDT Mon Sep 21 2026
.TONIGHT...
Sky/weather.........Partly cloudy(35-45%) until 2100, then mostly
cloudy(60-65%). Slight chance of rain showers
after 2100 until 2300, then chance of rain
showers.
Chance of thunder...0 percent.
Min Temperature.....50-54.
24 hr trend......Little change.
Max Humidity........96-99%.
24 hr trend......2-4% wetter.
20-foot winds.......Southeast winds 6-13 mph with gusts to around
20 mph.
CWR.................0 percent increasing to 10 percent after
midnight.
15K FT MSL winds....West 15-25 mph.
Mixing height.......1500-2500 ft AGL.
Transport winds.....Southeast 10-15 mph.
Smoke dispersal.....Poor.
.TUESDAY...
Sky/weather.........Mostly cloudy(50-60%) until 1200, then partly
cloudy(35-45%).
Chance of thunder...0 percent.
Max Temperature.....74-78.
24 hr trend......4-7 degrees warmer.
Min Humidity........40-46%.
24 hr trend......7-10% drier.
20-foot winds.......South winds 12-22 mph with gusts to around 35
mph.
CWR.................0 percent.
15K FT MSL winds....Southwest 15-20 mph.
Mixing height.......4000-5000 ft AGL.
Transport winds.....South 15-20 mph.
Smoke dispersal.....Poor until 1400, then good.
.TUESDAY NIGHT...
Sky/weather.........Mostly cloudy(60-65%).
Chance of thunder...0 percent.
Min Temperature.....51-55.
24 hr trend......Little change.
Max Humidity........96-99%.
24 hr trend......Little change.
20-foot winds.......Southeast winds 14-24 mph with gusts to around
35 mph.
CWR.................0 percent.
15K FT MSL winds....Southwest 15-20 mph.
Mixing height.......1500-2500 ft AGL until 0100, then Below 1000 FT
AGL until 0200, then 1000-1500 ft AGL until
0400, then Below 1000 FT AGL until 0500, then
1500 ft AGL.
Transport winds.....South 15-20 mph.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Mostly cloudy. Chance of rain showers and
slight chance of thunderstorms after 1200.
Chance of thunder...10 percent.
Max Temperature.....71-75.
24 hr trend......2-4 degrees cooler.
Min Humidity........44-52%.
24 hr trend......2-4% wetter.
20-foot winds.......South winds 13-20 mph with gusts to around 30
mph.
CWR.................0 percent increasing to 10 percent in the
afternoon.
15K FT MSL winds....Southwest 25-35 mph.
Mixing height.......3500-4500 ft AGL.
Transport winds.....South 15-20 mph.
Smoke dispersal.....Poor until 1500, then fair.
.WEDNESDAY NIGHT...Rain showers and slight chance of
thunderstorms. Lows in the lower 50s. South winds 5-12 mph.
.THURSDAY...Mostly cloudy. Slight chance of thunderstorms. Highs
around 70. Northeast winds 5-12 mph.
.FRIDAY...Partly cloudy. Slight chance of thunderstorms. Lows
around 50. Highs in the mid 70s. Southwest winds 4-8 mph.
.SATURDAY...Partly cloudy. Lows in the lower 50s. Highs in the
lower 80s. North winds 4-9 mph.
$$
COZ215-221015-
Larimer and Boulder Counties Between 6000 and 9000 Feet-
Including Estes Park, Glendevey, Laramie River Valley, Nederland,
and Red Feather Lakes
241 PM MDT Mon Sep 21 2026
.TONIGHT...
Sky/weather.........Partly cloudy(30-40%) until 2400, then mostly
cloudy(50-60%).
Chance of thunder...0 percent.
Min Temperature.....40-50.
24 hr trend......2-4 degrees warmer.
Max Humidity........74-84%.
24 hr trend......Little change.
20-foot winds.......
Valleys/lwr slopes...South winds 4-8 mph.
Ridges/upr slopes....Southeast winds 4-8 mph until 2400, then
south.
CWR.................0 percent.
15K FT MSL winds....West 20-30 mph.
Mixing height.......3000-4000 ft AGL until 2000, then Below 1000 FT
AGL until 2200, then 1000 ft AGL until 0400,
then Below 1000 FT AGL.
Transport winds.....Southeast around 10 mph until 0200, then light
until 0300, then southwest around 10 mph.
Smoke dispersal.....Poor.
.TUESDAY...
Sky/weather.........Mostly cloudy(60-65%) until 0900, then partly
cloudy(35-45%). Slight chance of rain showers
after 1200 until 1500, then slight chance of
thunderstorms.
Chance of thunder...20 percent.
Max Temperature.....65-75.
24 hr trend......4-7 degrees warmer.
Min Humidity........30-38%.
24 hr trend......7-10% drier.
20-foot winds.......
Valleys/lwr slopes...South winds 4-9 mph.
Ridges/upr slopes....South winds 4-9 mph.
CWR.................0 percent increasing to 10 percent in the
afternoon.
15K FT MSL winds....West 15-25 mph.
Mixing height.......Below 1000 FT AGL until 0900, then 7000-8000 ft
AGL.
Transport winds.....Southwest 10-15 mph.
Smoke dispersal.....Poor until 1200, then fair.
.TUESDAY NIGHT...
Sky/weather.........Partly cloudy(40-50%) until 2100, then mostly
cloudy(60-65%). Chance of rain showers until
1900. Slight chance of thunderstorms until
2000.
Chance of thunder...10 percent.
Min Temperature.....42-52.
24 hr trend......4-7 degrees warmer.
Max Humidity........70-80%.
24 hr trend......2-4% wetter.
20-foot winds.......
Valleys/lwr slopes...South winds 4-7 mph until 2400, then west.
Ridges/upr slopes....Southwest winds 4-8 mph.
CWR.................0 percent.
15K FT MSL winds....Southwest 15-25 mph.
Mixing height.......1500-2500 ft AGL until 2100, then Below 1000 FT
AGL.
Transport winds.....South 10-15 mph until 2200, then west.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Mostly cloudy. Chance of rain showers and
slight chance of thunderstorms after 1200.
Chance of thunder...20 percent.
Max Temperature.....64-74.
24 hr trend......2-4 degrees cooler.
Min Humidity........36-44%.
24 hr trend......Little change.
20-foot winds.......
Valleys/lwr slopes...West winds 4-7 mph until 1200, then south
4-8 mph. Gusts up to 20 mph.
Ridges/upr slopes....West winds 4-7 mph until 1200, then south.
Gusts up to 20 mph.
CWR.................0 percent increasing to 10 percent in the
afternoon.
15K FT MSL winds....Southwest 15-20 mph.
Mixing height.......Below 1000 FT AGL until 0800, then 5000-6000 ft
AGL.
Transport winds.....West around 10 mph until 1400, then south.
Smoke dispersal.....Poor until 1200, then fair.
.WEDNESDAY NIGHT...Mostly cloudy. Slight chance of rain showers.
Lows in the upper 40s. West winds 4-6 mph.
.THURSDAY...Mostly cloudy. Chance of rain showers and slight
chance of thunderstorms. Highs in the mid 60s. Southeast winds
4-7 mph.
.FRIDAY...Mostly cloudy. Chance of rain showers and slight chance
of thunderstorms. Lows in the mid 40s. Highs in the upper 60s.
West winds 4-7 mph.
.SATURDAY...Partly cloudy. Lows in the upper 40s. Highs in the
lower 70s. West winds 5-12 mph.
$$
COZ216-221015-
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet-
Including Bailey, Central City, Evergreen, Georgetown,
Idaho Springs, Northern Rampart Range, Tarryall, and Westcreek
241 PM MDT Mon Sep 21 2026
.TONIGHT...
Sky/weather.........Partly cloudy(30-40%) until 2100, then mostly
cloudy(55-60%) until 0300, then partly
cloudy(40-50%).
Chance of thunder...0 percent.
Min Temperature.....41-51.
24 hr trend......2-4 degrees warmer.
Max Humidity........76-86%.
24 hr trend......2-4% drier.
20-foot winds.......
Valleys/lwr slopes...Southeast winds 4-7 mph until 2400, then
southwest 4-8 mph.
Ridges/upr slopes....Southeast winds 4-8 mph with gusts to
around 20 mph until 2400, then southwest
4-9 mph.
CWR.................0 percent.
15K FT MSL winds....West 15-25 mph.
Mixing height.......1500-2500 ft AGL until 2200, then Below 1000 FT
AGL until 0100, then 1000 ft AGL until 0500,
then Below 1000 FT AGL.
Transport winds.....East around 10 mph until 1900, then light until
2400, then southwest around 10 mph.
Smoke dispersal.....Poor.
.TUESDAY...
Sky/weather.........Partly cloudy(30-40%) until 1200, then mostly
cloudy(60-65%). Chance of rain showers after
1200 until 1500, then chance of thunderstorms.
Chance of thunder...30 percent.
Max Temperature.....67-77.
24 hr trend......4-7 degrees warmer.
Min Humidity........24-34%.
24 hr trend......7-10% drier.
20-foot winds.......
Valleys/lwr slopes...Southwest winds 4-8 mph until 1200, then
southeast.
Ridges/upr slopes....Southwest winds 4-9 mph until 1200, then
south 4-13 mph. Gusts up to 20 mph.
CWR.................0 percent increasing to 10 percent in the
afternoon.
15K FT MSL winds....Southwest 15-20 mph.
Mixing height.......Below 1000 FT AGL until 0900, then 6500-7500 ft
AGL.
Transport winds.....Southwest around 10 mph.
Smoke dispersal.....Poor until 1200, then fair.
.TUESDAY NIGHT...
Sky/weather.........Mostly cloudy. Chance of rain showers until
2000. Slight chance of thunderstorms until
2100. Slight chance of rain showers after 2100
until 2200.
Chance of thunder...20 percent.
Min Temperature.....44-54.
24 hr trend......2-4 degrees warmer.
Max Humidity........71-81%.
24 hr trend......10-15% drier.
20-foot winds.......
Valleys/lwr slopes...Southwest winds 4-8 mph.
Ridges/upr slopes....Southwest winds 4-9 mph with gusts to
around 20 mph.
CWR.................10 percent decreasing to 0 percent after
midnight.
15K FT MSL winds....Southwest 15-20 mph.
Mixing height.......1500-2500 ft AGL until 2100, then Below 1000 FT
AGL.
Transport winds.....Southwest around 10 mph.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Mostly cloudy. Chance of rain showers and
slight chance of thunderstorms after 1200.
Chance of thunder...20 percent.
Max Temperature.....65-75.
24 hr trend......2-4 degrees cooler.
Min Humidity........33-43%.
24 hr trend......7-10% wetter.
20-foot winds.......
Valleys/lwr slopes...Southwest winds 4-7 mph until 1200, then
southeast with gusts to around 20 mph.
Ridges/upr slopes....Southwest winds 4-8 mph until 1200, then
southeast. Gusts up to 20 mph.
CWR.................0 percent increasing to 10 percent in the
afternoon.
15K FT MSL winds....Southwest around 15 mph.
Mixing height.......Below 1000 FT AGL until 0800, then 4500-5500 ft
AGL.
Transport winds.....Southwest around 10 mph until 1200, then light
until 1300, then southeast around 10 mph until
1500, then east.
Smoke dispersal.....Poor.
.WEDNESDAY NIGHT...Mostly cloudy. Chance of rain showers. Lows
around 50. Southwest winds 4-6 mph.
.THURSDAY...Mostly cloudy. Chance of rain showers and slight
chance of thunderstorms. Highs in the lower 60s. Northeast winds
4-6 mph.
.FRIDAY...Mostly cloudy. Chance of rain showers and slight chance
of thunderstorms. Lows in the upper 40s. Highs in the lower 70s.
West winds 4-7 mph.
.SATURDAY...Partly cloudy. Lows in the upper 40s. Highs in the
mid 70s. West winds 4-8 mph.
$$
COZ211-221015-
Jackson County Below 9000 Feet-
Including Gould, North Park, Rand, Spicer, and Walden
241 PM MDT Mon Sep 21 2026
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min Temperature.....28-38.
24 hr trend......Little change.
Max Humidity........82-92%.
24 hr trend......Little change.
20-foot winds.......South winds 4-7 mph.
CWR.................0 percent.
15K FT MSL winds....Southwest 15-25 mph.
Mixing height.......3000-4000 ft AGL until 2000, then Below 1000 FT
AGL.
Transport winds.....West around 10 mph until 2000, then light.
Smoke dispersal.....Poor.
.TUESDAY...
Sky/weather.........Partly cloudy(30-40%) until 0900, then mostly
sunny until 1200, then partly cloudy(30-40%)
until 1500, then mostly cloudy(50-60%). Slight
chance of rain showers after 1200 until 1500,
then slight chance of thunderstorms.
Chance of thunder...10 percent.
Max Temperature.....66-70.
24 hr trend......2-4 degrees warmer.
Min Humidity........28-34%.
24 hr trend......4-7% wetter.
20-foot winds.......Southwest winds 4-12 mph.
CWR.................0 percent.
15K FT MSL winds....Southwest 15-25 mph.
Mixing height.......Below 1000 FT AGL until 0900, then 7500-8500 ft
AGL.
Transport winds.....Light winds until 0700, then south around 10
mph until 0800, then light until 1000, then
southwest 10-15 mph.
Smoke dispersal.....Poor until 1100, then good until 1400, then
very good until 1700, then fair.
.TUESDAY NIGHT...
Sky/weather.........Mostly cloudy. Slight chance of thunderstorms
until 2400. Chance of rain showers.
Chance of thunder...10 percent.
Min Temperature.....31-41.
24 hr trend......Little change.
Max Humidity........90-100%.
24 hr trend......Little change.
20-foot winds.......South winds 4-9 mph.
CWR.................10 percent decreasing to 0 percent after
midnight.
15K FT MSL winds....Southwest 15-25 mph.
Mixing height.......2000-3000 ft AGL until 2000, then Below 1000 FT
AGL.
Transport winds.....Southwest around 10 mph.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Mostly cloudy. Slight chance of thunderstorms
after 1200.
Chance of thunder...10 percent.
Max Temperature.....61-67.
24 hr trend......2-4 degrees cooler.
Min Humidity........37-47%.
24 hr trend......10-15% wetter.
20-foot winds.......Southwest winds 4-9 mph until 1200, then west
7-14 mph. Gusts up to 25 mph.
CWR.................0 percent.
15K FT MSL winds....West 15-20 mph.
Mixing height.......Below 1000 FT AGL until 0800, then 5500-6500 ft
AGL.
Transport winds.....Southwest 10-15 mph until 1400, then west.
Smoke dispersal.....Poor until 1100, then good.
.WEDNESDAY NIGHT...Mostly cloudy. Lows in the mid 30s. Northwest
winds 4-6 mph.
.THURSDAY...Mostly cloudy. Chance of rain showers and slight
chance of thunderstorms. Highs in the mid 60s. Southeast winds
4-7 mph.
.FRIDAY...Partly cloudy. Slight chance of thunderstorms. Lows in
the mid 30s. Highs in the mid 60s. Southwest winds 4-9 mph.
.SATURDAY...Partly cloudy. Lows in the mid 30s. Highs in the
upper 60s. Southwest winds 4-9 mph.
$$
COZ213-221015-
Grand and Summit Counties Below 9000 Feet-
Including Dillon, Fraser, Granby, Grand Lake,
Green Mountain Reservoir, Hot Sulphur Springs, Kremmling,
Middle Park, and Williams Fork Reservoir
241 PM MDT Mon Sep 21 2026
.TONIGHT...
Sky/weather.........Partly cloudy(30-40%).
Chance of thunder...0 percent.
Min Temperature.....32-42.
24 hr trend......Little change.
Max Humidity........75-85%.
24 hr trend......Little change.
20-foot winds.......East winds 4-7 mph.
CWR.................0 percent.
15K FT MSL winds....Southwest 15-25 mph.
Mixing height.......3500-4500 ft AGL until 2000, then Below 1000 FT
AGL.
Transport winds.....West around 10 mph until 1900, then light.
Smoke dispersal.....Poor.
.TUESDAY...
Sky/weather.........Partly cloudy(35-45%) until 1500, then mostly
cloudy(50-60%). Slight chance of rain showers
after 1200 until 1500, then slight chance of
thunderstorms.
Chance of thunder...10 percent.
Max Temperature.....65-71.
24 hr trend......2-4 degrees warmer.
Min Humidity........26-32%.
24 hr trend......2-4% wetter.
20-foot winds.......South winds 4-7 mph until 1200, then southwest
4-13 mph.
CWR.................0 percent.
15K FT MSL winds....Southwest 15-25 mph.
Mixing height.......Below 1000 FT AGL until 0900, then 8000-9000 ft
AGL.
Transport winds.....Light winds until 1100, then southwest 10-15
mph.
Smoke dispersal.....Poor until 1200, then good.
.TUESDAY NIGHT...
Sky/weather.........Mostly cloudy. Slight chance of thunderstorms
until 2400. Chance of rain showers.
Chance of thunder...10 percent.
Min Temperature.....36-44.
24 hr trend......Little change.
Max Humidity........87-97%.
24 hr trend......10-15% wetter.
20-foot winds.......South winds 4-7 mph.
CWR.................10 percent decreasing to 0 percent after
midnight.
15K FT MSL winds....Southwest 15-25 mph.
Mixing height.......2000-3000 ft AGL until 2100, then Below 1000 FT
AGL.
Transport winds.....Southwest around 10 mph until 2200, then light.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Mostly cloudy. Slight chance of rain showers
until 1200, then slight chance of
thunderstorms.
Chance of thunder...20 percent.
Max Temperature.....61-67.
24 hr trend......2-4 degrees cooler.
Min Humidity........40-50%.
24 hr trend......15-20% wetter.
20-foot winds.......Southwest winds 4-8 mph until 1200, then
northwest 4-8 mph.
CWR.................0 percent increasing to 10 percent in the
afternoon.
15K FT MSL winds....West around 15 mph.
Mixing height.......Below 1000 FT AGL until 0800, then 5000-6000 ft
AGL.
Transport winds.....Light winds until 1100, then west around 10 mph
until 1700, then northwest.
Smoke dispersal.....Poor.
.WEDNESDAY NIGHT...Mostly cloudy. Chance of rain showers. Lows
around 40. North winds 4-6 mph.
.THURSDAY...Mostly cloudy. Chance of thunderstorms. Highs in the
lower 60s. Southeast winds 4-6 mph.
.FRIDAY...Mostly cloudy. Chance of thunderstorms. Lows in the
upper 30s. Highs in the mid 60s. Southwest winds 4-6 mph.
.SATURDAY...Partly cloudy. Lows in the upper 30s. Highs in the
mid 60s. Southwest winds 4-6 mph.
$$
COZ214-221015-
Central and Southeast Park County-
Including Eleven Mile Canyon Reservoir, Fairplay, Guffey,
Hartsel, Lake George, and South Park
241 PM MDT Mon Sep 21 2026
.TONIGHT...
Sky/weather.........Partly cloudy(40-50%) until 2100, then mostly
cloudy(60-65%). Slight chance of rain showers
after 2300.
Chance of thunder...0 percent.
Min Temperature.....39-47.
24 hr trend......2-4 degrees warmer.
Max Humidity........76-86%.
24 hr trend......2-4% wetter.
20-foot winds.......
Valleys/lwr slopes...South winds 4-12 mph. Gusts up to 20 mph
in the evening.
Ridges/upr slopes....South winds 4-12 mph. Gusts up to 20 mph
in the evening.
CWR.................0 percent.
15K FT MSL winds....Southwest 15-20 mph.
Mixing height.......1500-2500 ft AGL.
Transport winds.....South 10-15 mph.
Smoke dispersal.....Poor.
.TUESDAY...
Sky/weather.........Partly cloudy(40-50%) until 0900, then mostly
sunny until 1200, then partly cloudy(40-50%)
until 1500, then mostly cloudy(60-65%). Slight
chance of thunderstorms after 1200.
Chance of thunder...20 percent.
Max Temperature.....63-71.
24 hr trend......Little change.
Min Humidity........26-32%.
24 hr trend......4-7% wetter.
20-foot winds.......
Valleys/lwr slopes...Southwest winds 5-13 mph. Gusts up to 20
mph in the afternoon.
Ridges/upr slopes....Southwest winds 5-13 mph. Gusts up to 20
mph in the afternoon.
CWR.................0 percent increasing to 10 percent in the
afternoon.
15K FT MSL winds....Southwest 15-25 mph.
Mixing height.......7000-8000 ft AGL.
Transport winds.....Southwest 10-15 mph.
Smoke dispersal.....Poor until 1100, then good.
.TUESDAY NIGHT...
Sky/weather.........Mostly cloudy. Slight chance of thunderstorms
until 2100. Chance of rain showers after 1900
until 2100, then slight chance of rain showers
until 2400.
Chance of thunder...20 percent.
Min Temperature.....39-47.
24 hr trend......Little change.
Max Humidity........82-92%.
24 hr trend......4-7% wetter.
20-foot winds.......
Valleys/lwr slopes...South winds 4-8 mph with gusts to around
20 mph until 2400, then west 4-7 mph.
Ridges/upr slopes....South winds 4-9 mph with gusts to around
20 mph until 2400, then west.
CWR.................10 percent decreasing to 0 percent after
midnight.
15K FT MSL winds....Southwest 15-20 mph.
Mixing height.......1500-2500 ft AGL until 0100, then Below 1000 FT
AGL.
Transport winds.....South 10-15 mph until 0100, then west.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Mostly cloudy. Slight chance of rain showers
until 1200, then chance of rain showers and
slight chance of thunderstorms.
Chance of thunder...20 percent.
Max Temperature.....58-66.
24 hr trend......4-7 degrees cooler.
Min Humidity........38-48%.
24 hr trend......10-15% wetter.
20-foot winds.......
Valleys/lwr slopes...South winds 4-8 mph.
Ridges/upr slopes....South winds 4-8 mph.
CWR.................0 percent increasing to 20 percent in the
afternoon.
15K FT MSL winds....Southwest around 15 mph.
Mixing height.......Below 1000 FT AGL until 0800, then 4000-5000 ft
AGL.
Transport winds.....Southwest around 10 mph until 1600, then south.
Smoke dispersal.....Poor.
.WEDNESDAY NIGHT...Mostly cloudy. Rain showers likely. Lows in
the mid 40s. West winds 4-6 mph.
.THURSDAY...Rain showers likely and chance of thunderstorms.
Highs in the upper 50s. East winds 4-8 mph.
.FRIDAY...Mostly cloudy. Chance of thunderstorms. Lows in the
lower 40s. Highs in the lower 60s. West winds 4-8 mph.
.SATURDAY...Partly cloudy. Slight chance of rain showers. Lows
around 40. Highs in the mid 60s. West winds 4-9 mph.
$$
COZ218-221015-
South and East Jackson/Larimer/North and Northeast Grand/
Northwest Boulder Counties Above 9000 Feet-
Including Cameron Pass, Laramie and Medicine Bow Mountains,
Rabbit Ears Range, Rocky Mountain National Park,
and Willow Creek Pass
241 PM MDT Mon Sep 21 2026
.TONIGHT...
Sky/weather.........Partly cloudy(35-45%) until 0300, then mostly
cloudy(50-60%).
Chance of thunder...0 percent.
Min Temperature.....33-43.
24 hr trend......7-10 degrees warmer.
Max Humidity........71-81%.
24 hr trend......15-20% wetter.
20-foot winds.......
Valleys/lwr slopes...South winds 4-8 mph.
Ridges/upr slopes....South winds 4-9 mph.
CWR.................0 percent.
15K FT MSL winds....Southwest 15-25 mph.
Mixing height.......3000-4000 ft AGL until 2000, then Below 1000 FT
AGL.
Transport winds.....West around 10 mph until 1900, then light until
2400, then southeast around 10 mph until 0100,
then light until 0300, then south around 10
mph.
Smoke dispersal.....Poor.
.TUESDAY...
Sky/weather.........Partly cloudy(40-50%). Slight chance of rain
showers after 1200 until 1500, then slight
chance of thunderstorms.
Chance of thunder...10 percent.
Max Temperature.....55-65.
24 hr trend......2-4 degrees warmer.
Min Humidity........30-40%.
24 hr trend......2-4% wetter.
20-foot winds.......
Valleys/lwr slopes...Southwest winds 4-12 mph.
Ridges/upr slopes....Southwest winds 4-12 mph.
CWR.................0 percent increasing to 10 percent in the
afternoon.
15K FT MSL winds....Southwest 15-25 mph.
Mixing height.......Below 1000 FT AGL until 0900, then 7500-8500 ft
AGL.
Transport winds.....Southwest 10-15 mph.
Smoke dispersal.....Poor until 1100, then good.
.TUESDAY NIGHT...
Sky/weather.........Mostly cloudy(60-65%). Slight chance of
thunderstorms until 2100. Slight chance of rain
showers after 2100 until 0200.
Chance of thunder...10 percent.
Min Temperature.....35-45.
24 hr trend......Little change.
Max Humidity........79-89%.
24 hr trend......2-4% drier.
20-foot winds.......
Valleys/lwr slopes...South winds 4-8 mph.
Ridges/upr slopes....Southwest winds 4-12 mph. Gusts up to 20
mph after midnight.
CWR.................0 percent.
15K FT MSL winds....Southwest 15-25 mph.
Mixing height.......2000-3000 ft AGL until 2100, then Below 1000 FT
AGL.
Transport winds.....Southwest around 10 mph.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Mostly cloudy. Slight chance of rain showers
until 1200, then chance of rain showers and
slight chance of thunderstorms.
Chance of thunder...20 percent.
Max Temperature.....51-61.
24 hr trend......4-7 degrees cooler.
Min Humidity........43-53%.
24 hr trend......10-15% wetter.
20-foot winds.......
Valleys/lwr slopes...West winds 4-9 mph with gusts to around 20
mph.
Ridges/upr slopes....West winds 4-9 mph with gusts to around 20
mph.
CWR.................0 percent increasing to 20 percent in the
afternoon.
15K FT MSL winds....Southwest 15-20 mph.
Mixing height.......Below 1000 FT AGL until 0800, then 5000-6000 ft
AGL.
Transport winds.....Southwest 10-15 mph until 1700, then west.
Smoke dispersal.....Poor until 1200, then fair.
.WEDNESDAY NIGHT...Mostly cloudy. Slight chance of rain showers.
Lows around 40. North winds 4-6 mph.
.THURSDAY...Mostly cloudy. Chance of rain showers and slight
chance of thunderstorms. Highs in the mid 50s. East winds
4-7 mph.
.FRIDAY...Mostly cloudy. Chance of thunderstorms. Lows in the
upper 30s. Highs in the upper 50s. West winds 4-9 mph.
.SATURDAY...Partly cloudy. Lows in the upper 30s. Highs in the
upper 50s. Southwest winds 4-9 mph.
$$
COZ212-221015-
South and Southeast Grand/West Central and Southwest Boulder/
Gilpin/Clear Creek/Summit/North and West Park Counties Above
9000 Feet-
Including Berthoud Pass, Breckenridge,
East Slopes Mosquito Range, East Slopes Southern Gore Range,
Eisenhower Tunnel, Indian Peaks, Kenosha Mountains,
Mount Blue Sky, Puma Hills, Tarryall Mountains,
Williams Fork Mountains, and Winter Park
241 PM MDT Mon Sep 21 2026
.TONIGHT...
Sky/weather.........Partly cloudy(40-50%) until 2400, then mostly
cloudy(50-60%) until 0300, then partly
cloudy(40-50%).
Chance of thunder...0 percent.
Min Temperature.....33-43.
24 hr trend......Little change.
Max Humidity........71-81%.
24 hr trend......10-15% wetter.
20-foot winds.......
Valleys/lwr slopes...South winds 4-8 mph.
Ridges/upr slopes....South winds 4-12 mph.
CWR.................0 percent.
15K FT MSL winds....Southwest 15-25 mph.
Mixing height.......1500-2500 ft AGL until 0500, then Below 1000 FT
AGL.
Transport winds.....West around 10 mph until 1900, then light until
2400, then southwest around 10 mph.
Smoke dispersal.....Poor.
.TUESDAY...
Sky/weather.........Partly cloudy(40-50%) until 1500, then mostly
cloudy(55-60%). Chance of rain showers after
1200 until 1500, then chance of thunderstorms.
Chance of thunder...30 percent.
Max Temperature.....55-65.
24 hr trend......2-4 degrees warmer.
Min Humidity........28-38%.
24 hr trend......2-4% wetter.
20-foot winds.......
Valleys/lwr slopes...Southwest winds 4-9 mph.
Ridges/upr slopes....Southwest winds 4-12 mph.
CWR.................0 percent increasing to 10 percent in the
afternoon.
15K FT MSL winds....Southwest 15-20 mph.
Mixing height.......Below 1000 FT AGL until 0900, then 6500-7500 ft
AGL.
Transport winds.....Southwest 10-15 mph.
Smoke dispersal.....Poor until 1100, then fair.
.TUESDAY NIGHT...
Sky/weather.........Mostly cloudy. Slight chance of thunderstorms
until 2100. Chance of rain showers until 2200.
Slight chance of rain showers after 2200 until
2400.
Chance of thunder...20 percent.
Min Temperature.....35-45.
24 hr trend......Little change.
Max Humidity........78-88%.
24 hr trend......10-15% wetter.
20-foot winds.......
Valleys/lwr slopes...Southwest winds 4-8 mph.
Ridges/upr slopes....Southwest winds 4-12 mph with gusts to
around 20 mph.
CWR.................10 percent decreasing to 0 percent after
midnight.
15K FT MSL winds....Southwest 15-20 mph.
Mixing height.......1500-2500 ft AGL until 2100, then Below 1000 FT
AGL until 2400, then 1000 ft AGL until 0100,
then Below 1000 FT AGL.
Transport winds.....Southwest around 10 mph.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Mostly cloudy. Chance of rain showers and
slight chance of thunderstorms after 1200.
Chance of thunder...20 percent.
Max Temperature.....51-61.
24 hr trend......4-7 degrees cooler.
Min Humidity........43-53%.
24 hr trend......10-15% wetter.
20-foot winds.......
Valleys/lwr slopes...West winds 4-8 mph.
Ridges/upr slopes....West winds 4-12 mph.
CWR.................0 percent increasing to 30 percent in the
afternoon.
15K FT MSL winds....West around 15 mph.
Mixing height.......Below 1000 FT AGL until 0800, then 4500-5500 ft
AGL.
Transport winds.....West around 10 mph until 1600, then north.
Smoke dispersal.....Poor.
.WEDNESDAY NIGHT...Mostly cloudy. Chance of rain showers. Lows
around 40. North winds 4-6 mph.
.THURSDAY...Mostly cloudy. Chance of thunderstorms. Highs in the
lower 50s. East winds 4-8 mph.
.FRIDAY...Mostly cloudy. Chance of thunderstorms. Lows in the
upper 30s. Highs in the mid 50s. West winds 4-9 mph.
.SATURDAY...Partly cloudy. Slight chance of thunderstorms. Lows
in the upper 30s. Highs in the upper 50s. West winds 4-9 mph.
$$
COZ217-221015-
West Jackson and West Grand Counties Above 9000 Feet-
Including East Slopes Park and Northern Gore Ranges, Gore Pass,
and Rabbit Ears Pass
241 PM MDT Mon Sep 21 2026
.TONIGHT...
Sky/weather.........Partly cloudy(35-45%).
Chance of thunder...0 percent.
Min Temperature.....34-42.
24 hr trend......4-7 degrees warmer.
Max Humidity........62-72%.
24 hr trend......7-10% drier.
20-foot winds.......
Valleys/lwr slopes...West winds 4-7 mph until 2400, then south.
Ridges/upr slopes....Southwest winds 4-12 mph.
CWR.................0 percent.
15K FT MSL winds....Southwest 15-25 mph.
Mixing height.......3500-4500 ft AGL until 2000, then Below 1000 FT
AGL.
Transport winds.....West around 10 mph until 2000, then light until
0300, then south around 10 mph.
Smoke dispersal.....Poor.
.TUESDAY...
Sky/weather.........Partly cloudy(35-45%) until 0900, then mostly
sunny until 1200, then partly cloudy(40-50%).
Slight chance of thunderstorms after 1200.
Chance of thunder...10 percent.
Max Temperature.....57-67.
24 hr trend......2-4 degrees warmer.
Min Humidity........30-40%.
24 hr trend......4-7% wetter.
20-foot winds.......
Valleys/lwr slopes...Southwest winds 5-13 mph. Gusts up to 20
mph in the afternoon.
Ridges/upr slopes....Southwest winds 6-14 mph.
CWR.................0 percent.
15K FT MSL winds....Southwest 15-25 mph.
Mixing height.......Below 1000 FT AGL until 0900, then 7500-8500 ft
AGL.
Transport winds.....Southwest 10-15 mph until 1300, then around 15
mph.
Smoke dispersal.....Poor until 1100, then good.
.TUESDAY NIGHT...
Sky/weather.........Mostly cloudy. Slight chance of thunderstorms
until 2400. Chance of rain showers.
Chance of thunder...10 percent.
Min Temperature.....36-44.
24 hr trend......Little change.
Max Humidity........85-95%.
24 hr trend......35-50% wetter.
20-foot winds.......
Valleys/lwr slopes...Southwest winds 4-12 mph.
Ridges/upr slopes....Southwest winds 6-14 mph.
CWR.................10 percent decreasing to 0 percent after
midnight.
15K FT MSL winds....Southwest 20-30 mph.
Mixing height.......3000-4000 ft AGL until 2000, then Below 1000 FT
AGL.
Transport winds.....Southwest 10-15 mph.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Mostly cloudy. Slight chance of rain showers
until 1200. Slight chance of thunderstorms
after 1200.
Chance of thunder...10 percent.
Max Temperature.....53-63.
24 hr trend......4-7 degrees cooler.
Min Humidity........42-52%.
24 hr trend......20-25% wetter.
20-foot winds.......
Valleys/lwr slopes...West winds 5-13 mph with gusts to around
25 mph.
Ridges/upr slopes....West winds 6-14 mph with gusts to around
25 mph.
CWR.................0 percent.
15K FT MSL winds....West 15-25 mph.
Mixing height.......Below 1000 FT AGL until 0800, then 5500-6500 ft
AGL.
Transport winds.....Southwest 10-15 mph until 1600, then west.
Smoke dispersal.....Poor until 1200, then fair.
.WEDNESDAY NIGHT...Mostly cloudy. Lows around 40. North winds
4-7 mph.
.THURSDAY...Mostly cloudy. Chance of rain showers and slight
chance of thunderstorms. Highs in the upper 50s. East winds
4-8 mph.
.FRIDAY...Partly cloudy. Chance of thunderstorms. Lows around 40.
Highs in the upper 50s. Southwest winds 5-12 mph.
.SATURDAY...Partly cloudy. Lows in the upper 30s. Highs in the
lower 60s. Southwest winds 5-12 mph.
$$
.Outlook 6 to 10 Days...
Temperatures Above Normal and Precipitation Above Normal.
$$