Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Boise, ID
Issued by NWS Boise, ID
315
FNUS55 KBOI 171054
FWFBOI
Fire Weather Planning Forecast for SW Idaho and SE Oregon
National Weather Service Boise ID
454 AM MDT Thu Sep 17 2026
...RED FLAG WARNING FOR SCATTERED THUNDERSTORMS FOR IDAHO ZONES 403
AND 421...
...RED FLAG WARNING FOR SCATTERED THUNDERSTORMS OREGON ZONES 670, 671,
674, AND 675...
.DISCUSSION...
* Southwest Idaho BLM (ID Zones 400, 420, 423, 424, 426)...Warm
and mostly dry conditions with light terrain driven winds will
return today, with breezy southerly winds by the late morning.
Showers will increase over high terrain in ID 424/426 today,
with isolated thunderstorms this evening with gusty outflow
winds and small hail.
* Southwest Idaho Forest (ID Zones 401, 402, 403, 421)...Warm
temperatures with light terrain driven winds will return today.
Rain showers will increase over the Boise National Forest today,
with scattered thunderstorms this evening with gusty outflow
winds up to 40 mph and small hail.
* Southeast Oregon (OR Zones 670-675)...Warm and mostly dry
conditions with light terrain driven winds will return for most
of the Vale BLM today, with breezy southerly winds by the late
morning. Rain showers will increase over east-central Oregon
today, with scattered thunderstorms this evening bringing gusty
outflow winds up to 50 mph and small hail.
IDZ401-172230-
Western Payette National Forest-
454 AM MDT Thu Sep 17 2026
.TODAY...
Sky/weather.........Partly sunny with rain showers likely and a
chance of thunderstorms. Chance of
precipitation 60 percent.
Chance of thunder...30 percent.
Max temperature.....61 to 76.
24 hr trend......On average, 2 degrees cooler.
Min humidity........48 to 65 percent.
24 hr trend......On average, 24 percent wetter.
20-foot winds.......
Valleys/lwr slopes...Northeast around 8 mph in the morning,
becoming light upslope less than 8 mph in
the afternoon.
Ridges/upr slopes....East 8 to 9 mph in the morning, becoming
light in the afternoon.
CWR /0.10 inch/.....60 percent.
Smoke Dispersal.....
Mixing Height......4000-6000 ft AGL.
Transport Winds....South 10 to 15 mph.
.TONIGHT...
Sky/weather.........Partly cloudy. A 30 percent chance of showers
and thunderstorms in the evening.
Chance of thunder...30 percent.
Min temperature.....42 to 51.
24 hr trend......On average, 3 degrees cooler.
Max humidity........72 to 93 percent.
24 hr trend......On average, 8 percent wetter.
20-foot winds.......
Valleys/lwr slopes...Light downslope winds less than 8 mph.
Ridges/upr slopes....Light winds less than 8 mph.
CWR /0.10 inch/.....10 percent.
Smoke Dispersal.....
Mixing Height......100-200 ft AGL.
Transport Winds....Southeast up to 5 mph.
.FRIDAY...
Sky/weather.........Partly cloudy. A chance of rain showers and a
slight chance of thunderstorms in the
afternoon. Chance of precipitation 40 percent.
Chance of thunder...20 percent.
Max temperature.....54 to 69.
24 hr trend......On average, 7 degrees cooler.
Min humidity........46 to 66 percent.
24 hr trend......On average, unchanged.
20-foot winds.......
Valleys/lwr slopes...Light upslope winds less than 8 mph.
Ridges/upr slopes....Light winds less than 8 mph.
CWR /0.10 inch/.....20 percent.
Smoke Dispersal.....
Mixing Height......5500-7500 ft AGL.
Transport Winds....Southwest 5 to 10 mph.
$$
=
IDZ402-172230-
Eastern Payette National Forest-
454 AM MDT Thu Sep 17 2026
.TODAY...
Sky/weather.........A chance of thunderstorms. Rain showers, mainly
in the afternoon. Chance of precipitation 80
percent.
Chance of thunder...40 percent.
Max temperature.....60 to 75.
24 hr trend......On average, unchanged.
Min humidity........42 to 59 percent.
24 hr trend......On average, 22 percent wetter.
20-foot winds.......
Valleys/lwr slopes...Light upslope winds less than 8 mph.
Ridges/upr slopes....Southeast around 8 mph.
CWR /0.10 inch/.....50 percent.
Smoke Dispersal.....
Mixing Height......5000-7000 ft AGL.
Transport Winds....South 10 to 15 mph.
.TONIGHT...
Sky/weather.........Partly cloudy. A 30 percent chance of showers
and thunderstorms in the evening.
Chance of thunder...30 percent.
Min temperature.....41 to 49.
24 hr trend......On average, 2 degrees cooler.
Max humidity........73 to 86 percent.
24 hr trend......On average, 13 percent wetter.
20-foot winds.......
Valleys/lwr slopes...Light downslope winds less than 8 mph.
Ridges/upr slopes....Light winds less than 8 mph.
CWR /0.10 inch/.....20 percent.
Smoke Dispersal.....
Mixing Height......100-200 ft AGL.
Transport Winds....South around 5 mph.
.FRIDAY...
Sky/weather.........Partly cloudy. A chance of rain showers in the
morning, then rain showers likely and a slight
chance of thunderstorms in the afternoon.
Chance of precipitation 60 percent.
Chance of thunder...20 percent.
Max temperature.....52 to 66.
24 hr trend......On average, 9 degrees cooler.
Min humidity........47 to 66 percent.
24 hr trend......On average, 6 percent wetter.
20-foot winds.......
Valleys/lwr slopes...Light upslope winds less than 8 mph.
Ridges/upr slopes....Light winds less than 8 mph.
CWR /0.10 inch/.....40 percent.
Smoke Dispersal.....
Mixing Height......6000-8000 ft AGL.
Transport Winds....Southwest 5 to 10 mph.
$$
=
IDZ403-172230-
Northern Boise National Forest-
454 AM MDT Thu Sep 17 2026
...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS
EVENING...
.TODAY...
Sky/weather.........Partly cloudy with a chance of thunderstorms.
Rain showers likely, mainly in the afternoon.
Chance of precipitation 60 percent.
Chance of thunder...40 percent.
Max temperature.....61 to 76.
24 hr trend......On average, 4 degrees cooler.
Min humidity........43 to 58 percent.
24 hr trend......On average, 29 percent wetter.
20-foot winds.......
Valleys/lwr slopes...East around 8 mph in the morning, becoming
light upslope less than 8 mph in the
afternoon.
Ridges/upr slopes....Southeast 8 to 11 mph.
CWR /0.10 inch/.....50 percent.
Smoke Dispersal.....
Mixing Height......6000-8000 ft AGL.
Transport Winds....South 15 to 25 mph.
.TONIGHT...
Sky/weather.........Partly cloudy. A 20 percent chance of showers
and thunderstorms in the evening.
Chance of thunder...20 percent.
Min temperature.....40 to 49.
24 hr trend......On average, 3 degrees cooler.
Max humidity........69 to 85 percent.
24 hr trend......On average, 7 percent wetter.
20-foot winds.......
Valleys/lwr slopes...Light downslope winds less than 8 mph.
Ridges/upr slopes....Light winds less than 8 mph.
CWR /0.10 inch/.....10 percent.
Smoke Dispersal.....
Mixing Height......100-200 ft AGL.
Transport Winds....Southeast up to 5 mph.
.FRIDAY...
Sky/weather.........Partly cloudy with a chance of rain showers. A
slight chance of thunderstorms in the
afternoon. Chance of precipitation 30 percent.
Chance of thunder...20 percent.
Max temperature.....53 to 67.
24 hr trend......On average, 8 degrees cooler.
Min humidity........43 to 59 percent.
24 hr trend......On average, unchanged.
20-foot winds.......
Valleys/lwr slopes...Light upslope winds less than 8 mph.
Ridges/upr slopes....Light winds less than 8 mph.
CWR /0.10 inch/.....30 percent.
Smoke Dispersal.....
Mixing Height......6000-8000 ft AGL.
Transport Winds....Southwest 5 to 10 mph.
$$
=
IDZ421-172230-
Southern Boise/Western Sawtooth NF, including the Camas Prairie-
454 AM MDT Thu Sep 17 2026
...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS
EVENING...
.TODAY...
Sky/weather.........Partly cloudy with a 40 percent chance of
showers and thunderstorms.
Chance of thunder...30 percent.
Max temperature.....69 to 80, except 60 to 68 above 6500 feet.
24 hr trend......On average, 3 degrees cooler.
Min humidity........24 to 34 percent, except 35 to 49 percent above
6500 feet.
24 hr trend......On average, 15 percent wetter.
20-foot winds.......
Valleys/lwr slopes...Southeast 11 to 17 mph with gusts to 24
mph.
Ridges/upr slopes....Southeast 11 to 17 mph with gusts to 26
mph.
CWR /0.10 inch/.....30 percent.
Smoke Dispersal.....
Mixing Height......7000-9000 ft AGL.
Transport Winds....South 20 to 25 mph.
.TONIGHT...
Sky/weather.........Partly cloudy in the evening, then mostly
cloudy with a 20 percent chance of rain showers
after midnight.
Chance of thunder...0 percent.
Min temperature.....42 to 50.
24 hr trend......On average, 5 degrees cooler.
Max humidity........60 to 80 percent.
24 hr trend......On average, unchanged.
20-foot winds.......
Valleys/lwr slopes...West 8 to 9 mph with gusts to 16 mph in
the evening, becoming light downslope less
than 8 mph after midnight.
Ridges/upr slopes....West 8 to 11 mph with gusts to 18 mph in
the evening, becoming light after
midnight.
CWR /0.10 inch/.....10 percent.
Smoke Dispersal.....
Mixing Height......100-200 ft AGL.
Transport Winds....North up to 10 mph.
.FRIDAY...
Sky/weather.........Partly cloudy with a chance of rain showers. A
slight chance of thunderstorms in the
afternoon. Chance of precipitation 30 percent.
Chance of thunder...20 percent.
Max temperature.....61 to 70, except 53 to 61 above 6500 feet.
24 hr trend......On average, 8 degrees cooler.
Min humidity........36 to 46 percent, except 42 to 55 percent above
6500 feet.
24 hr trend......On average, 8 percent wetter.
20-foot winds.......
Valleys/lwr slopes...Light upslope winds less than 8 mph in the
morning, becoming west 8 to 10 mph with
gusts to 18 mph in the afternoon.
Ridges/upr slopes....Light winds less than 8 mph in the
morning, becoming west 8 to 10 mph with
gusts to 18 mph in the afternoon.
CWR /0.10 inch/.....20 percent.
Smoke Dispersal.....
Mixing Height......6000-8000 ft AGL.
Transport Winds....Southwest 10 to 15 mph.
$$
=
IDZ400-172230-
Northern Boise BLM-
454 AM MDT Thu Sep 17 2026
.TODAY...
Sky/weather.........Partly cloudy with a 30 percent chance of
showers and thunderstorms.
Chance of thunder...30 percent.
Max temperature.....72 to 81.
24 hr trend......On average, 4 degrees cooler.
Min humidity........35 to 45 percent.
24 hr trend......On average, 16 percent wetter.
20-foot winds.......
Valleys/lwr slopes...Northeast 8 to 10 mph in the morning,
shifting to southwest around 8 mph in the
afternoon.
Ridges/upr slopes....East 8 to 9 mph in the morning, shifting
to south around 8 mph in the afternoon.
Gusts to 16 mph.
CWR /0.10 inch/.....30 percent.
Smoke Dispersal.....
Mixing Height......7500-9000 ft AGL.
Transport Winds....South around 15 mph.
.TONIGHT...
Sky/weather.........Partly cloudy. A 30 percent chance of showers
and thunderstorms in the evening.
Chance of thunder...10 percent.
Min temperature.....49 to 54.
24 hr trend......On average, 3 degrees cooler.
Max humidity........69 to 86 percent.
24 hr trend......On average, 9 percent wetter.
20-foot winds.......
Valleys/lwr slopes...Light downslope winds less than 8 mph.
Ridges/upr slopes....Light winds less than 8 mph.
CWR /0.10 inch/.....10 percent.
Smoke Dispersal.....
Mixing Height......100-200 ft AGL.
Transport Winds....Southeast up to 5 mph.
.FRIDAY...
Sky/weather.........Partly cloudy. A chance of showers and a slight
chance of thunderstorms in the afternoon.
Chance of precipitation 30 percent.
Chance of thunder...20 percent.
Max temperature.....66 to 76.
24 hr trend......On average, 5 degrees cooler.
Min humidity........37 to 49 percent.
24 hr trend......On average, 4 percent wetter.
20-foot winds.......
Valleys/lwr slopes...Light upslope winds less than 8 mph.
Ridges/upr slopes....Light winds less than 8 mph.
CWR /0.10 inch/.....10 percent.
Smoke Dispersal.....
Mixing Height......6500-7500 ft AGL.
Transport Winds....West around 5 mph.
$$
=
IDZ420-172230-
Treasure Valley BLM-
454 AM MDT Thu Sep 17 2026
.TODAY...
Sky/weather.........Partly cloudy with a 20 percent chance of
showers and thunderstorms.
Chance of thunder...10 percent.
Max temperature.....80 to 85.
24 hr trend......On average, unchanged.
Min humidity........20 to 30 percent.
24 hr trend......On average, 7 percent wetter.
20-foot winds.......
Valleys/lwr slopes...East around 8 mph in the morning, shifting
to southwest 8 to 12 mph in the afternoon.
Ridges/upr slopes....Light winds less than 8 mph in the
morning, becoming south 8 to 12 mph in the
afternoon.
CWR /0.10 inch/.....10 percent.
Smoke Dispersal.....
Mixing Height......9000-11000 ft AGL.
Transport Winds....South 15 to 20 mph.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....50 to 55.
24 hr trend......On average, 2 degrees cooler.
Max humidity........67 to 92 percent.
24 hr trend......On average, 5 percent wetter.
20-foot winds.......
Valleys/lwr slopes...West 8 to 13 mph.
Ridges/upr slopes....Northwest 8 to 11 mph in the evening,
becoming light after midnight.
CWR /0.10 inch/.....0 percent.
Smoke Dispersal.....
Mixing Height......100-200 ft AGL.
Transport Winds....Northwest 5 to 10 mph.
.FRIDAY...
Sky/weather.........Partly cloudy. A 20 percent chance of showers
in the afternoon.
Chance of thunder...0 percent.
Max temperature.....72 to 77.
24 hr trend......On average, 8 degrees cooler.
Min humidity........37 to 48 percent.
24 hr trend......On average, 12 percent wetter.
20-foot winds.......
Valleys/lwr slopes...Northwest around 10 mph.
Ridges/upr slopes....Light winds less than 8 mph in the
morning, becoming west 8 to 10 mph in the
afternoon.
CWR /0.10 inch/.....10 percent.
Smoke Dispersal.....
Mixing Height......6500-7500 ft AGL.
Transport Winds....West 5 to 15 mph.
$$
=
IDZ424-172230-
Western Twin Falls BLM-
454 AM MDT Thu Sep 17 2026
.TODAY...
Sky/weather.........Partly cloudy with a 30 percent chance of
showers and thunderstorms.
Chance of thunder...20 percent.
Max temperature.....78 to 86.
24 hr trend......On average, unchanged.
Min humidity........15 to 25 percent.
24 hr trend......On average, 3 percent wetter.
20-foot winds.......
Valleys/lwr slopes...South 11 to 17 mph with gusts to 24 mph.
Ridges/upr slopes....South 11 to 17 mph with gusts to 24 mph.
CWR /0.10 inch/.....20 percent.
Smoke Dispersal.....
Mixing Height......9000-11000 ft AGL.
Transport Winds....South 20 to 25 mph.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....50 to 55.
24 hr trend......On average, 5 degrees cooler.
Max humidity........57 to 78 percent.
24 hr trend......On average, 3 percent wetter.
20-foot winds.......
Valleys/lwr slopes...Northwest 9 to 15 mph. Gusts to 24 mph in
the evening, decreasing to 18 mph after
midnight.
Ridges/upr slopes....Northwest 8 to 11 mph with gusts to 18 mph
in the evening, becoming light after
midnight.
CWR /0.10 inch/.....0 percent.
Smoke Dispersal.....
Mixing Height......100-200 ft AGL.
Transport Winds....Northwest 10 to 15 mph.
.FRIDAY...
Sky/weather.........Partly cloudy. A 20 percent chance of rain
showers in the morning.
Chance of thunder...0 percent.
Max temperature.....69 to 75.
24 hr trend......On average, 11 degrees cooler.
Min humidity........31 to 46 percent.
24 hr trend......On average, 16 percent wetter.
20-foot winds.......
Valleys/lwr slopes...West 8 to 12 mph. Gusts to 16 mph in the
morning, increasing to 22 mph in the
afternoon.
Ridges/upr slopes....Light winds less than 8 mph in the
morning, becoming west 8 to 11 mph with
gusts to 18 mph in the afternoon.
CWR /0.10 inch/.....10 percent.
Smoke Dispersal.....
Mixing Height......7000-8000 ft AGL.
Transport Winds....West 10 to 15 mph.
$$
=
IDZ423-172230-
Owyhee Mountains-
454 AM MDT Thu Sep 17 2026
.TODAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....70 to 81.
24 hr trend......On average, unchanged.
Min humidity........16 to 26 percent.
24 hr trend......On average, unchanged.
20-foot winds.......
Valleys/lwr slopes...South 11 to 17 mph with gusts to 24 mph.
Ridges/upr slopes....Southwest 11 to 17 mph with gusts to 26
mph.
CWR /0.10 inch/.....0 percent.
Smoke Dispersal.....
Mixing Height......8500-10500 ft AGL.
Transport Winds....Southwest 20 to 25 mph.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....43 to 52.
24 hr trend......On average, 5 degrees cooler.
Max humidity........61 to 83 percent.
24 hr trend......On average, 10 percent wetter.
20-foot winds.......
Valleys/lwr slopes...West 11 to 17 mph. Gusts to 24 mph in the
evening.
Ridges/upr slopes....West 11 to 17 mph with gusts to 24 mph in
the evening, becoming light after
midnight.
CWR /0.10 inch/.....0 percent.
Smoke Dispersal.....
Mixing Height......100-200 ft AGL.
Transport Winds....West 5 to 15 mph.
.FRIDAY...
Sky/weather.........Partly cloudy. A chance of rain showers and a
slight chance of thunderstorms in the
afternoon. Chance of precipitation 30 percent.
Chance of thunder...20 percent.
Max temperature.....62 to 72.
24 hr trend......On average, 8 degrees cooler.
Min humidity........33 to 48 percent.
24 hr trend......On average, 22 percent wetter.
20-foot winds.......
Valleys/lwr slopes...Light upslope winds less than 8 mph in the
morning, becoming northwest 8 to 11 mph
with gusts to 20 mph in the afternoon.
Ridges/upr slopes....Light winds less than 8 mph in the
morning, becoming west 8 to 11 mph with
gusts to 20 mph in the afternoon.
CWR /0.10 inch/.....10 percent.
Smoke Dispersal.....
Mixing Height......5500-7500 ft AGL.
Transport Winds....West 10 to 15 mph.
$$
=
IDZ426-172230-
Southern Highlands-
454 AM MDT Thu Sep 17 2026
.TODAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....78 to 84.
24 hr trend......On average, unchanged.
Min humidity........14 to 24 percent.
24 hr trend......On average, unchanged.
20-foot winds.......
Valleys/lwr slopes...South 11 to 17 mph with gusts to 24 mph.
Ridges/upr slopes....South 11 to 17 mph.
CWR /0.10 inch/.....0 percent.
Smoke Dispersal.....
Mixing Height......10000-12000 ft AGL.
Transport Winds....South 20 to 25 mph.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....45 to 53.
24 hr trend......On average, 6 degrees cooler.
Max humidity........54 to 67 percent.
24 hr trend......On average, 6 percent drier.
20-foot winds.......
Valleys/lwr slopes...Southwest 9 to 15 mph with gusts to 24
mph.
Ridges/upr slopes....Southwest 9 to 15 mph. Gusts to 20 mph in
the evening.
CWR /0.10 inch/.....0 percent.
Smoke Dispersal.....
Mixing Height......200 ft AGL.
Transport Winds....Southwest 10 to 15 mph.
.FRIDAY...
Sky/weather.........Partly cloudy. A slight chance of rain showers
in the morning, then a chance of rain showers
and a slight chance of thunderstorms in the
afternoon. Chance of precipitation 30 percent.
Chance of thunder...20 percent.
Max temperature.....67 to 72.
24 hr trend......On average, 12 degrees cooler.
Min humidity........32 to 47 percent.
24 hr trend......On average, 20 percent wetter.
20-foot winds.......
Valleys/lwr slopes...Northwest 8 to 11 mph with gusts to 22
mph.
Ridges/upr slopes....Light winds less than 8 mph in the
morning, becoming northwest 8 to 9 mph
with gusts to 20 mph in the afternoon.
CWR /0.10 inch/.....20 percent.
Smoke Dispersal.....
Mixing Height......7500-8500 ft AGL.
Transport Winds....West 10 to 15 mph.
$$
=
ORZ675-172230-
Baker Valley-
354 AM PDT Thu Sep 17 2026
...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 8 PM PDT
THIS EVENING...
.TODAY...
Sky/weather.........Partly cloudy with a chance of thunderstorms.
Rain showers likely, decreasing in the
afternoon. Chance of precipitation 60 percent.
Chance of thunder...30 percent.
Max temperature.....68 to 74.
24 hr trend......On average, 4 degrees cooler.
Min humidity........48 to 55 percent.
24 hr trend......On average, 21 percent wetter.
20-foot winds.......
Valleys/lwr slopes...Light upslope winds less than 8 mph.
Ridges/upr slopes....Northeast 8 to 9 mph in the morning,
becoming light in the afternoon.
CWR /0.10 inch/.....40 percent.
Smoke Dispersal.....
Mixing Height......3000-5000 ft AGL.
Transport Winds....Southeast 5 to 15 mph.
.TONIGHT...
Sky/weather.........Partly cloudy. A chance of showers and
thunderstorms in the evening, then a slight
chance of rain showers after midnight. Areas of
fog after midnight. Chance of precipitation 30
percent.
Chance of thunder...30 percent.
Min temperature.....41 to 52.
24 hr trend......On average, unchanged.
Max humidity........81 to 100 percent.
24 hr trend......On average, 11 percent wetter.
20-foot winds.......
Valleys/lwr slopes...Light downslope winds less than 8 mph.
Ridges/upr slopes....Light winds less than 8 mph.
CWR /0.10 inch/.....20 percent.
Smoke Dispersal.....
Mixing Height......100-200 ft AGL.
Transport Winds....Northwest up to 5 mph.
.FRIDAY...
Sky/weather.........Partly cloudy with a chance of rain showers. A
slight chance of thunderstorms in the
afternoon. Areas of fog in the morning. Chance
of precipitation 40 percent.
Chance of thunder...20 percent.
Max temperature.....65 to 71.
24 hr trend......On average, 3 degrees cooler.
Min humidity........44 to 52 percent.
24 hr trend......On average, 4 percent drier.
20-foot winds.......
Valleys/lwr slopes...Light upslope winds less than 8 mph.
Ridges/upr slopes....Light winds less than 8 mph.
CWR /0.10 inch/.....30 percent.
Smoke Dispersal.....
Mixing Height......5500-6500 ft AGL.
Transport Winds....Northwest 5 to 10 mph.
$$
=
ORZ674-172230-
Northwestern Vale BLM-
354 AM PDT Thu Sep 17 2026
...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 8 PM PDT
THIS EVENING...
.TODAY...
Sky/weather.........Partly cloudy with a chance of thunderstorms.
Rain showers likely, decreasing in the
afternoon. Chance of precipitation 60 percent.
Chance of thunder...30 percent.
Max temperature.....65 to 74.
24 hr trend......On average, 5 degrees cooler.
Min humidity........38 to 52 percent.
24 hr trend......On average, 20 percent wetter.
20-foot winds.......
Valleys/lwr slopes...North 8 to 11 mph in the morning, shifting
to south 8 to 13 mph in the afternoon.
Ridges/upr slopes....Northeast 8 to 12 mph in the morning,
shifting to south in the afternoon. Gusts
to 20 mph.
CWR /0.10 inch/.....30 percent.
Smoke Dispersal.....
Mixing Height......4500-6500 ft AGL.
Transport Winds....South 10 to 20 mph.
.TONIGHT...
Sky/weather.........Partly cloudy. A 30 percent chance of showers
and thunderstorms in the evening.
Chance of thunder...10 percent.
Min temperature.....44 to 50.
24 hr trend......On average, 3 degrees cooler.
Max humidity........81 to 93 percent.
24 hr trend......On average, 19 percent wetter.
20-foot winds.......
Valleys/lwr slopes...West 8 to 12 mph.
Ridges/upr slopes....West 8 to 12 mph. Gusts to 20 mph in the
evening.
CWR /0.10 inch/.....10 percent.
Smoke Dispersal.....
Mixing Height......200-300 ft AGL.
Transport Winds....West 5 to 15 mph.
.FRIDAY...
Sky/weather.........Partly cloudy. A slight chance of rain showers
in the morning, then a chance of rain showers
and a slight chance of thunderstorms in the
afternoon. Areas of dense fog in the morning.
Chance of precipitation 30 percent.
Chance of thunder...20 percent.
Max temperature.....63 to 72.
24 hr trend......On average, 3 degrees cooler.
Min humidity........36 to 50 percent.
24 hr trend......On average, 2 percent drier.
20-foot winds.......
Valleys/lwr slopes...Northwest around 9 mph.
Ridges/upr slopes....Northwest 8 to 11 mph.
CWR /0.10 inch/.....20 percent.
Smoke Dispersal.....
Mixing Height......6000-7000 ft AGL.
Transport Winds....Northwest 5 to 15 mph.
$$
=
ORZ673-172230-
Central Canyonlands-
454 AM MDT Thu Sep 17 2026
.TODAY...
Sky/weather.........Partly cloudy with a 30 percent chance of
showers and thunderstorms.
Chance of thunder...10 percent.
Max temperature.....70 to 81.
24 hr trend......On average, 4 degrees cooler.
Min humidity........31 to 43 percent.
24 hr trend......On average, 13 percent wetter.
20-foot winds.......
Valleys/lwr slopes...Northeast 8 to 10 mph in the morning,
shifting to southwest 8 to 13 mph in the
afternoon. Gusts to 20 mph.
Ridges/upr slopes....East 8 to 13 mph in the morning, shifting
to south 8 to 14 mph with gusts to 22 mph
in the afternoon.
CWR /0.10 inch/.....20 percent.
Smoke Dispersal.....
Mixing Height......6500-8500 ft AGL.
Transport Winds....Southwest 15 to 20 mph.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....45 to 53.
24 hr trend......On average, 3 degrees cooler.
Max humidity........74 to 92 percent.
24 hr trend......On average, 15 percent wetter.
20-foot winds.......
Valleys/lwr slopes...West 8 to 13 mph. Gusts to 20 mph in the
evening.
Ridges/upr slopes....West 8 to 13 mph. Gusts to 20 mph in the
evening.
CWR /0.10 inch/.....0 percent.
Smoke Dispersal.....
Mixing Height......200-300 ft AGL.
Transport Winds....West 5 to 15 mph.
.FRIDAY...
Sky/weather.........Partly cloudy. A chance of rain showers and a
slight chance of thunderstorms in the
afternoon. Chance of precipitation 30 percent.
Chance of thunder...20 percent.
Max temperature.....66 to 76.
24 hr trend......On average, 3 degrees cooler.
Min humidity........38 to 48 percent.
24 hr trend......On average, 6 percent wetter.
20-foot winds.......
Valleys/lwr slopes...West around 8 mph in the morning, becoming
light upslope less than 8 mph in the
afternoon.
Ridges/upr slopes....West 8 to 9 mph in the morning, becoming
light in the afternoon. Gusts to 16 mph.
CWR /0.10 inch/.....10 percent.
Smoke Dispersal.....
Mixing Height......6000-7500 ft AGL.
Transport Winds....Northwest 5 to 10 mph.
$$
=
ORZ672-172230-
Southern Grasslands-
354 AM PDT Thu Sep 17 2026
.TODAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....67 to 76.
24 hr trend......On average, 6 degrees cooler.
Min humidity........20 to 30 percent.
24 hr trend......On average, 8 percent wetter.
20-foot winds.......
Valleys/lwr slopes...Southwest 11 to 17 mph with gusts to 22
mph.
Ridges/upr slopes....Southwest 11 to 17 mph.
CWR /0.10 inch/.....0 percent.
Smoke Dispersal.....
Mixing Height......8000-10000 ft AGL.
Transport Winds....Southwest 15 to 25 mph.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....42 to 47.
24 hr trend......On average, 3 degrees cooler.
Max humidity........76 to 90 percent.
24 hr trend......On average, 22 percent wetter.
20-foot winds.......
Valleys/lwr slopes...Southwest 9 to 15 mph in the evening,
becoming light downslope less than 8 mph
after midnight.
Ridges/upr slopes....West 11 to 17 mph.
CWR /0.10 inch/.....0 percent.
Smoke Dispersal.....
Mixing Height......200-300 ft AGL.
Transport Winds....Southwest 5 to 10 mph.
.FRIDAY...
Sky/weather.........Partly cloudy. A 20 percent chance of showers
and thunderstorms in the afternoon.
Chance of thunder...20 percent.
Max temperature.....64 to 72.
24 hr trend......On average, 4 degrees cooler.
Min humidity........33 to 44 percent.
24 hr trend......On average, 12 percent wetter.
20-foot winds.......
Valleys/lwr slopes...Light upslope winds less than 8 mph in the
morning, becoming west 8 to 10 mph in the
afternoon.
Ridges/upr slopes....Light winds less than 8 mph in the
morning, becoming northwest 8 to 12 mph in
the afternoon.
CWR /0.10 inch/.....10 percent.
Smoke Dispersal.....
Mixing Height......6000-7500 ft AGL.
Transport Winds....Northwest 10 to 15 mph.
$$
=
ORZ671-172230-
Steens Mountain-
354 AM PDT Thu Sep 17 2026
...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 8 PM PDT
THIS EVENING...
.TODAY...
Sky/weather.........Partly cloudy. A chance of showers and
thunderstorms, mainly in the afternoon. Chance
of precipitation 30 percent.
Chance of thunder...20 percent.
Max temperature.....57 to 69.
24 hr trend......On average, 7 degrees cooler.
Min humidity........30 to 45 percent.
24 hr trend......On average, 19 percent wetter.
20-foot winds.......
Valleys/lwr slopes...Southwest 8 to 11 mph with gusts to 18
mph.
Ridges/upr slopes....Southwest 8 to 12 mph.
CWR /0.10 inch/.....10 percent.
Smoke Dispersal.....
Mixing Height......5000-7000 ft AGL.
Transport Winds....Southwest around 15 mph.
.TONIGHT...
Sky/weather.........Partly cloudy in the evening, then becoming
mostly cloudy after midnight. A chance of rain
showers. A chance of thunderstorms in the
evening. Chance of precipitation 30 percent.
Chance of thunder...20 percent.
Min temperature.....39 to 47.
24 hr trend......On average, 2 degrees cooler.
Max humidity........78 to 94 percent.
24 hr trend......On average, 18 percent wetter.
20-foot winds.......
Valleys/lwr slopes...West 8 to 11 mph with gusts to 18 mph.
Ridges/upr slopes....West 8 to 11 mph with gusts to 18 mph.
CWR /0.10 inch/.....10 percent.
Smoke Dispersal.....
Mixing Height......200-300 ft AGL.
Transport Winds....West 5 to 15 mph.
.FRIDAY...
Sky/weather.........Mostly cloudy in the morning, then becoming
mostly sunny in the afternoon. A 30 percent
chance of rain showers.
Chance of thunder...0 percent.
Max temperature.....57 to 68.
24 hr trend......On average, unchanged.
Min humidity........35 to 46 percent.
24 hr trend......On average, unchanged.
20-foot winds.......
Valleys/lwr slopes...Northwest 8 to 11 mph. Gusts to 20 mph in
the afternoon.
Ridges/upr slopes....Northwest 8 to 11 mph. Gusts to 20 mph in
the afternoon.
CWR /0.10 inch/.....10 percent.
Smoke Dispersal.....
Mixing Height......6000-7500 ft AGL.
Transport Winds....Northwest 15 to 20 mph.
$$
=
ORZ670-172230-
Burns BLM-
354 AM PDT Thu Sep 17 2026
...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 8 PM PDT
THIS EVENING...
.TODAY...
Sky/weather.........Partly cloudy with a 40 percent chance of
showers and thunderstorms.
Chance of thunder...30 percent.
Max temperature.....61 to 68.
24 hr trend......On average, 9 degrees cooler.
Min humidity........32 to 47 percent.
24 hr trend......On average, 25 percent wetter.
20-foot winds.......
Valleys/lwr slopes...West 8 to 12 mph.
Ridges/upr slopes....West 8 to 12 mph. Gusts to 20 mph in the
afternoon.
CWR /0.10 inch/.....30 percent.
Smoke Dispersal.....
Mixing Height......3500-5500 ft AGL.
Transport Winds....West 15 to 20 mph.
.TONIGHT...
Sky/weather.........Mostly cloudy with a chance of rain showers. A
chance of thunderstorms in the evening. Chance
of precipitation 30 percent.
Chance of thunder...20 percent.
Min temperature.....40 to 45.
24 hr trend......On average, 2 degrees cooler.
Max humidity........86 to 100 percent.
24 hr trend......On average, 12 percent wetter.
20-foot winds.......
Valleys/lwr slopes...West 8 to 11 mph. Gusts to 18 mph in the
evening.
Ridges/upr slopes....West 8 to 11 mph. Gusts to 18 mph in the
evening.
CWR /0.10 inch/.....20 percent.
Smoke Dispersal.....
Mixing Height......200-300 ft AGL.
Transport Winds....West 5 to 15 mph.
.FRIDAY...
Sky/weather.........Mostly cloudy with a chance of rain showers in
the morning, then partly cloudy with a slight
chance of rain showers in the afternoon. Chance
of showers 30 percent.
Chance of thunder...0 percent.
Max temperature.....65 to 70.
24 hr trend......On average, 3 degrees warmer.
Min humidity........32 to 38 percent.
24 hr trend......On average, 11 percent drier.
20-foot winds.......
Valleys/lwr slopes...Light upslope winds less than 8 mph in the
morning, becoming northwest 8 to 11 mph
with gusts to 22 mph in the afternoon.
Ridges/upr slopes....Light winds less than 8 mph in the
morning, becoming northwest 8 to 12 mph
with gusts to 22 mph in the afternoon.
CWR /0.10 inch/.....10 percent.
Smoke Dispersal.....
Mixing Height......7000-8000 ft AGL.
Transport Winds....Northwest around 15 mph.
$$
=
.FORECAST DAYS 3 THROUGH 7...
.SATURDAY...Partly cloudy. Showers likely and a slight chance of
thunderstorms. Chance of precipitation 70 percent. Lows 40 to 51.
Highs 62 to 77. Northwest winds up to 10 mph with gusts to
20 mph.
.SUNDAY...Partly cloudy. Lows 42 to 52. Highs 67 to 81. Northeast
winds up to 10 mph.
.MONDAY...Partly cloudy. Lows 44 to 53. Highs 68 to 83. Light
winds less than 10 mph.
.TUESDAY...Mostly clear. Lows 44 to 54. Highs 69 to 84.
.WEDNESDAY...Mostly clear. Lows 43 to 53. Highs 68 to 83.
$$
=