Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Grand Junction, CO
Issued by NWS Grand Junction, CO
939
FNUS55 KGJT 310900
FWFGJT
Fire Weather Planning Forecast for Wrn Colorado and Ern Utah
National Weather Service Grand Junction CO
300 AM MDT Sun Aug 31 2025
.DISCUSSION...
Warmer and drier conditions return today and beyond. Temperatures
will trend a few degrees above normal this week. Isolated terrain
based showers and thunderstorms will favor the southern
mountains. Widespread critical fire weather conditions are not
expected. Wetting rains will remain very localized and unlikely
this week. Surges of monsoonal moisture appear mid week and next
weekend.
...GUSTY ERRATIC WINDS CAN BE EXPECTED NEAR ANY SHOWERS
OR THUNDERSTORMS...
...THE SMOKE DATA IS CALCULATED FROM AN AVERAGE AT 6000 FEET MSL...
COZ200-010100-
Little Snake Forecast Area-
300 AM MDT Sun Aug 31 2025
.TODAY...
Sky/weather.........Sunny (0-10%).
Chc of lightning....0 percent.
Max temperature.....73-83 F near 6000 feet
64-74 F near 8000 feet.
Min humidity........12-17%.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................0 percent.
15K Ft MSL Winds....North 5 to 10 mph.
Mixing Height.......2500 ft AGL until 1100, then 11500 ft AGL.
Transport Winds.....North 5 mph.
Smoke dispersal.....Poor until 1200. Fair after 1500.
.TONIGHT...
Sky/weather.........Clear (0-10%).
Chc of lightning....0 percent.
Min temperature.....48-58 F.
Max humidity........46-56% near 6000 feet
35-45% near 8000 feet.
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming
downslope/downvalley 3 to 6 mph by sunset.
CWR.................0 percent.
15K Ft MSL Winds....North 5 to 10 mph.
Mixing Height.......9500 ft AGL until 2000, then 1500 ft AGL.
Transport Winds.....Northeast 5 mph.
Smoke dispersal.....Poor.
.LABOR DAY...
Sky/weather.........Sunny (0-10%).
Chc of lightning....0 percent.
Max temperature.....76-86 F near 6000 feet
66-76 F near 8000 feet.
Min humidity........9-14%.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................0 percent.
15K Ft MSL Winds....Northwest 5 to 10 mph.
Mixing Height.......2500 ft AGL until 1100. 11000 ft AGL after
1200.
Transport Winds.....Northeast 5 mph.
Smoke dispersal.....Poor until 1200, then fair.
.FORECAST FOR DAY 3 THROUGH 7...
.TUESDAY...Clear. Lows 46-56. Highs 80-90. Winds less than
15 mph.
.WEDNESDAY...Mostly clear. Lows 48-58. Highs 79-89. Winds less
than 15 mph.
.THURSDAY...Mostly clear. Lows 48-58. Highs 79-89. Winds less
than 15 mph.
.FRIDAY...Mostly clear. Lows 47-57. Highs 79-89.
.SATURDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows 48-58. Highs 77-87.
$$
COZ201-010100-
Routt Forecast Area-
300 AM MDT Sun Aug 31 2025
.TODAY...
Sky/weather.........Sunny (0-10%).
Chc of lightning....0 percent.
Max temperature.....63-73 F.
Min humidity........18-28%.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................0 percent.
15K Ft MSL Winds....North 10 to 15 mph decreasing to 5 to 10 mph in
the afternoon.
Mixing Height.......1500 ft AGL until 0900. 10000 ft AGL after
1000.
Transport Winds.....Northeast 5 mph until 1200, then northwest.
Smoke dispersal.....Poor until 0900. Good after 1200.
.TONIGHT...
Sky/weather.........Clear (0-10%).
Chc of lightning....0 percent.
Min temperature.....42-52 F.
Max humidity........47-57%.
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming
downslope/downvalley 3 to 6 mph by sunset.
CWR.................0 percent.
15K Ft MSL Winds....North 5 to 10 mph.
Mixing Height.......8500 ft AGL until 1900. 1500 ft AGL after 2000.
Transport Winds.....Northeast 5 to 10 mph until 2400, then east.
Smoke dispersal.....Poor.
.LABOR DAY...
Sky/weather.........Mostly sunny (10-20%).
Chc of lightning....0 percent.
Max temperature.....66-76 F.
Min humidity........14-24%.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................0 percent.
15K Ft MSL Winds....North 10 to 15 mph decreasing to 5 to 10 mph in
the afternoon.
Mixing Height.......2500 ft AGL until 1000, then 9500 ft AGL.
Transport Winds.....Northeast 5 mph until 1200, then north.
Smoke dispersal.....Poor until 0900. Fair after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.TUESDAY...Mostly clear. Lows 42-52. Highs 69-79. Winds less than
15 mph.
.WEDNESDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 43-53. Highs 68-78. Winds less than 15 mph.
.THURSDAY...Mostly clear. Lows 42-52. Highs 68-78. Winds less
than 15 mph.
.FRIDAY...Mostly clear. Isolated showers and thunderstorms. Lows
42-52. Highs 68-78.
.SATURDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 43-53. Highs 67-77.
$$
COZ202-010100-
White River Forecast Area-
300 AM MDT Sun Aug 31 2025
.TODAY...
Sky/weather.........Sunny (0-10%).
Chc of lightning....0 percent.
Max temperature.....73-83 F near 6000 feet
65-75 F near 8000 feet.
Min humidity........12-17%.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................0 percent.
15K Ft MSL Winds....North 5 to 10 mph.
Mixing Height.......2000 ft AGL until 1100, then 10500 ft AGL.
Transport Winds.....East 5 mph until 1200, then north.
Smoke dispersal.....Poor until 1200. Fair after 1500.
.TONIGHT...
Sky/weather.........Clear (0-10%).
Chc of lightning....0 percent.
Min temperature.....46-56 F.
Max humidity........43-53% near 6000 feet
32-42% near 8000 feet.
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming
downslope/downvalley 3 to 6 mph by sunset.
CWR.................0 percent.
15K Ft MSL Winds....North 5 to 10 mph.
Mixing Height.......8000 ft AGL until 2000, then 1000 ft AGL.
Transport Winds.....East 5 to 10 mph.
Smoke dispersal.....Poor.
.LABOR DAY...
Sky/weather.........Sunny (0-10%).
Chc of lightning....0 percent.
Max temperature.....73-83 F near 6000 feet
67-77 F near 8000 feet.
Min humidity........8-13%.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................0 percent.
15K Ft MSL Winds....North 5 to 10 mph.
Mixing Height.......2000 ft AGL until 1100, then 9500 ft AGL.
Transport Winds.....Northeast 5 mph.
Smoke dispersal.....Poor until 1200, then fair.
.FORECAST FOR DAY 3 THROUGH 7...
.TUESDAY...Clear. Lows 46-56. Highs 80-90. Winds less than
15 mph.
.WEDNESDAY...Mostly clear. Lows 48-58. Highs 79-89. Winds less
than 15 mph.
.THURSDAY...Mostly clear. Lows 48-58. Highs 80-90. Winds less
than 15 mph.
.FRIDAY...Mostly clear. Isolated showers and thunderstorms. Lows
48-58. Highs 80-90.
.SATURDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows 49-59. Highs 78-88.
$$
COZ203-010100-
Lower Colorado River-
300 AM MDT Sun Aug 31 2025
.TODAY...
Sky/weather.........Sunny (0-10%).
Chc of lightning....0 percent.
Max temperature.....77-87 F near 6000 feet
69-79 F near 8000 feet.
Min humidity........12-17%.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................0 percent.
15K Ft MSL Winds....East 5 to 10 mph shifting to the north in the
afternoon.
Mixing Height.......2500 ft AGL until 1000, then 12000 ft AGL.
Transport Winds.....East 5 mph until 1200, then north.
Smoke dispersal.....Poor until 0900. Good after 1500.
.TONIGHT...
Sky/weather.........Mostly clear (10-20%).
Chc of lightning....0 percent.
Min temperature.....52-62 F.
Max humidity........36-46%.
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming
downslope/downvalley 3 to 6 mph by sunset.
CWR.................0 percent.
15K Ft MSL Winds....Northeast 5 to 10 mph shifting to the southwest
after midnight.
Mixing Height.......11000 ft AGL until 1900. 2000 ft AGL after
2000.
Transport Winds.....Northeast 5 to 10 mph.
Smoke dispersal.....Poor.
.LABOR DAY...
Sky/weather.........Sunny (0-10%).
Chc of lightning....0 percent.
Max temperature.....79-89 F near 6000 feet
71-81 F near 8000 feet.
Min humidity........9-14%.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................0 percent.
15K Ft MSL Winds....North 5 to 10 mph.
Mixing Height.......3000 ft AGL until 1100, then 11000 ft AGL.
Transport Winds.....East 5 mph until 1200, then north.
Smoke dispersal.....Poor until 1200. Fair after 1500.
.FORECAST FOR DAY 3 THROUGH 7...
.TUESDAY...Clear. Lows 52-62. Highs 81-91. Winds less than
15 mph.
.WEDNESDAY...Mostly clear. Lows 53-63. Highs 81-91. Winds less
than 15 mph.
.THURSDAY...Mostly clear. Isolated showers. Lows 53-63. Highs
81-91. Winds less than 15 mph.
.FRIDAY...Mostly clear. Isolated showers and thunderstorms. Lows
53-63. Highs 81-91.
.SATURDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows 54-64. Highs 78-88.
$$
COZ205-010100-
Colorado River Headwaters-
300 AM MDT Sun Aug 31 2025
.TODAY...
Sky/weather.........Mostly sunny (20-30%).
Chc of lightning....0 percent.
Max temperature.....68-78 F.
Min humidity........15-25%.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................0 percent.
15K Ft MSL Winds....North 5 to 10 mph.
Mixing Height.......2500 ft AGL until 1000, then 11000 ft AGL.
Transport Winds.....Northeast 5 mph until 1200, then northwest.
Smoke dispersal.....Poor until 0900. Fair after 1200.
.TONIGHT...
Sky/weather.........Mostly clear (20-30%).
Chc of lightning....0 percent.
Min temperature.....44-54 F.
Max humidity........55-65%.
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming
downslope/downvalley 3 to 6 mph by sunset.
CWR.................0 percent.
15K Ft MSL Winds....North 5 to 10 mph shifting to the northwest
after midnight.
Mixing Height.......9500 ft AGL until 1900. 2000 ft AGL after 2000.
Transport Winds.....North 5 to 10 mph until 2400, then east.
Smoke dispersal.....Poor.
.LABOR DAY...
Sky/weather.........Mostly sunny (10-20%).
Chc of lightning....0 percent.
Max temperature.....70-80 F.
Min humidity........11-21%.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................0 percent.
15K Ft MSL Winds....North 5 to 10 mph.
Mixing Height.......2500 ft AGL until 1000, then 10500 ft AGL.
Transport Winds.....Northeast 5 mph until 1200, then north.
Smoke dispersal.....Poor until 0900. Fair after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.TUESDAY...Mostly clear. Lows 42-52. Highs 70-80. Winds less than
15 mph.
.WEDNESDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 43-53. Highs 70-80. Winds less than 15 mph.
.THURSDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 42-52. Highs 70-80. Winds less than 15 mph.
.FRIDAY...Mostly clear. Isolated showers and thunderstorms. Lows
42-52. Highs 70-80.
.SATURDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 43-53. Highs 68-78.
$$
COZ290-010100-
Paradox Valley Forecast Area-
300 AM MDT Sun Aug 31 2025
.TODAY...
Sky/weather.........Sunny (0-10%). Near 8000 feet, isolated showers
and thunderstorms after 1200.
Chc of lightning....0 percent.
Max temperature.....77-87 F near 6000 feet
65-75 F near 8000 feet.
Min humidity........11-16% near 6000 feet
16-26% near 8000 feet.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................0 percent.
15K Ft MSL Winds....Southwest 5 to 10 mph.
Mixing Height.......2000 ft AGL until 1000. 12000 ft AGL after
1200.
Transport Winds.....East 5 mph until 1200, then west.
Smoke dispersal.....Poor until 1200, then fair.
.TONIGHT...
Sky/weather.........Mostly clear (10-20%).
Chc of lightning....0 percent.
Min temperature.....50-60 F near 6000 feet
45-55 F near 8000 feet.
Max humidity........30-40% near 6000 feet
47-57% near 8000 feet.
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming
downslope/downvalley 3 to 6 mph by sunset.
CWR.................0 percent.
15K Ft MSL Winds....Northeast 5 to 10 mph shifting to the southwest
5 mph after midnight.
Mixing Height.......10000 ft AGL until 2000, then 1500 ft AGL.
Transport Winds.....North 5 to 10 mph until 2400, then east.
Smoke dispersal.....Poor.
.LABOR DAY...
Sky/weather.........Sunny (0-10%). Near 8000 feet, isolated showers
and thunderstorms after 1200.
Chc of lightning....0 percent.
Max temperature.....78-88 F near 6000 feet
67-77 F near 8000 feet.
Min humidity........9-14%.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................0 percent.
15K Ft MSL Winds....North 5 to 10 mph.
Mixing Height.......2000 ft AGL until 1000, then 11000 ft AGL.
Transport Winds.....Southeast 5 mph until 1200, then northwest.
Smoke dispersal.....Poor until 1200. Fair after 1500.
.FORECAST FOR DAY 3 THROUGH 7...
.TUESDAY...Mostly clear. Isolated showers and thunderstorms near
8000 feet. Lows 54-64. Highs 82-92. Winds less than 15 mph.
.WEDNESDAY...Partly cloudy. Isolated showers and thunderstorms
near 8000 feet. Lows 55-65. Highs 83-93. Winds less than 15 mph.
.THURSDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 54-64. Highs 83-93. Winds less than 15 mph.
.FRIDAY...Mostly clear. Isolated showers and thunderstorms. Lows
54-64. Highs 82-92.
.SATURDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 55-65. Highs 78-88.
$$
COZ291-010100-
Northern San Juan Forecast Area-
300 AM MDT Sun Aug 31 2025
.TODAY...
Sky/weather.........Mostly sunny (20-30%). Isolated showers and
thunderstorms after 1200.
Chc of lightning....20 percent.
Max temperature.....64-74 F.
Min humidity........19-29%.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................10 percent.
15K Ft MSL Winds....Southwest 5 to 10 mph.
Mixing Height.......2000 ft AGL until 0900, then 10500 ft AGL.
Transport Winds.....South 5 mph until 1200, then northwest.
Smoke dispersal.....Poor until 0900. Fair after 1200.
.TONIGHT...
Sky/weather.........Mostly clear (10-20%).
Chc of lightning....0 percent.
Min temperature.....44-54 F.
Max humidity........52-62%.
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming
downslope/downvalley 3 to 6 mph by sunset.
CWR.................0 percent.
15K Ft MSL Winds....Northwest 5 to 10 mph.
Mixing Height.......9000 ft AGL until 1900. 2000 ft AGL after 2000.
Transport Winds.....Northeast 5 mph until 2400, then southeast.
Smoke dispersal.....Poor.
.LABOR DAY...
Sky/weather.........Mostly sunny (10-20%). Isolated showers and
thunderstorms after 1200.
Chc of lightning....10 percent.
Max temperature.....66-76 F.
Min humidity........12-22%.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................10 percent.
15K Ft MSL Winds....North 5 to 10 mph.
Mixing Height.......2500 ft AGL until 1000, then 10500 ft AGL.
Transport Winds.....South 5 mph until 1200, then north.
Smoke dispersal.....Poor until 0900. Fair after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.TUESDAY...Mostly clear. Isolated showers and thunderstorms. Lows
44-54. Highs 71-81. Winds less than 15 mph.
.WEDNESDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows 45-55. Highs 72-82. Winds less than 15 mph.
.THURSDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 44-54. Highs 72-82. Winds less than 15 mph.
.FRIDAY...Mostly clear. Scattered showers and isolated
thunderstorms. Lows 44-54. Highs 71-81.
.SATURDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 44-54. Highs 68-78.
$$
COZ292-010100-
North Fork Forecast Area-
300 AM MDT Sun Aug 31 2025
.TODAY...
Sky/weather.........Sunny (0-10%). Near 8000 feet, isolated showers
and thunderstorms after 1200.
Chc of lightning....0 percent.
Max temperature.....78-88 F near 6000 feet
67-77 F near 8000 feet.
Min humidity........12-17%.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................0 percent.
15K Ft MSL Winds....Southwest 5 to 10 mph shifting to the northwest
in the afternoon.
Mixing Height.......2500 ft AGL until 1000, then 12000 ft AGL.
Transport Winds.....East 5 mph until 1200, then northwest.
Smoke dispersal.....Poor until 1200. Good after 1500.
.TONIGHT...
Sky/weather.........Clear (0-10%).
Chc of lightning....0 percent.
Min temperature.....47-57 F near 6000 feet
45-55 F near 8000 feet.
Max humidity........45-55%.
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming
downslope/downvalley 3 to 6 mph by sunset.
CWR.................0 percent.
15K Ft MSL Winds....Northeast 5 to 10 mph shifting to the west
after midnight.
Mixing Height.......10500 ft AGL until 1900. 2000 ft AGL after
2000.
Transport Winds.....North 5 to 10 mph until 2400, then southeast.
Smoke dispersal.....Poor.
.LABOR DAY...
Sky/weather.........Mostly sunny (10-20%).
Chc of lightning....0 percent.
Max temperature.....79-89 F near 6000 feet
69-79 F near 8000 feet.
Min humidity........11-16%.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................0 percent.
15K Ft MSL Winds....North 5 to 10 mph.
Mixing Height.......3000 ft AGL until 1100, then 10000 ft AGL.
Transport Winds.....East 5 mph until 1200, then northwest.
Smoke dispersal.....Poor until 1200, then fair.
.FORECAST FOR DAY 3 THROUGH 7...
.TUESDAY...Clear. Isolated showers and thunderstorms near
8000 feet. Lows 51-61. Highs 82-92. Winds less than 15 mph.
.WEDNESDAY...Mostly clear. Isolated showers and thunderstorms
near 8000 feet. Lows 52-62. Highs 82-92. Winds less than 15 mph.
.THURSDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 51-61. Highs 82-92. Winds less than 15 mph.
.FRIDAY...Mostly clear. Isolated showers and thunderstorms. Lows
51-61. Highs 82-92.
.SATURDAY...Partly cloudy. Isolated showers and thunderstorms
near 6000 feet and scattered showers and thunderstorms near
8000 feet. Lows 52-62. Highs 79-89.
$$
COZ293-010100-
Gunnison Basin Forecast Area-
300 AM MDT Sun Aug 31 2025
.TODAY...
Sky/weather.........Mostly sunny (20-30%). Isolated showers and
thunderstorms after 1200.
Chc of lightning....0 percent.
Max temperature.....70-80 F.
Min humidity........14-24%.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................0 percent.
15K Ft MSL Winds....West 5 to 10 mph.
Mixing Height.......2500 ft AGL until 1000, then 12000 ft AGL.
Transport Winds.....East 5 mph until 1200, then northwest.
Smoke dispersal.....Poor until 0900. Good after 1500.
.TONIGHT...
Sky/weather.........Mostly clear (20-30%).
Chc of lightning....0 percent.
Min temperature.....44-54 F.
Max humidity........59-74%.
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming
downslope/downvalley 3 to 6 mph by sunset.
CWR.................0 percent.
15K Ft MSL Winds....North 5 to 10 mph shifting to the northwest
after midnight.
Mixing Height.......11000 ft AGL until 1900. 2000 ft AGL after
2000.
Transport Winds.....North 5 to 10 mph until 2400, then east.
Smoke dispersal.....Poor.
.LABOR DAY...
Sky/weather.........Mostly sunny (10-20%).
Chc of lightning....0 percent.
Max temperature.....72-82 F.
Min humidity........11-21%.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................0 percent.
15K Ft MSL Winds....North 5 to 10 mph.
Mixing Height.......2500 ft AGL until 1000, then 10500 ft AGL.
Transport Winds.....Northeast 5 mph until 1200, then northwest.
Smoke dispersal.....Poor until 0900. Good after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.TUESDAY...Mostly clear. Isolated showers. Lows 41-51. Highs
72-82. Winds less than 15 mph.
.WEDNESDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 42-52. Highs 72-82. Winds less than 15 mph.
.THURSDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 41-51. Highs 72-82. Winds less than 15 mph.
.FRIDAY...Mostly clear. Isolated showers and thunderstorms. Lows
41-51. Highs 72-82.
.SATURDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 42-52. Highs 70-80.
$$
COZ207-010100-
Southwest Colorado Lower Forecast Area-
300 AM MDT Sun Aug 31 2025
.TODAY...
Sky/weather.........Sunny (0-10%).
Chc of lightning....0 percent.
Max temperature.....78-88 F.
Min humidity........13-23%.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................0 percent.
15K Ft MSL Winds....Southwest 5 mph.
Mixing Height.......2000 ft AGL until 1000, then 11500 ft AGL.
Transport Winds.....East 5 to 10 mph until 1200, then west.
Smoke dispersal.....Poor until 0900. Fair after 1200.
.TONIGHT...
Sky/weather.........Mostly clear (10-20%).
Chc of lightning....0 percent.
Min temperature.....51-61 F.
Max humidity........52-62%.
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming
downslope/downvalley 3 to 6 mph by sunset.
CWR.................0 percent.
15K Ft MSL Winds....Northeast 5 to 10 mph shifting to the southwest
after midnight.
Mixing Height.......9500 ft AGL until 2000, then 1500 ft AGL.
Transport Winds.....North 5 mph until 2400, then east.
Smoke dispersal.....Poor.
.LABOR DAY...
Sky/weather.........Mostly sunny (10-20%).
Chc of lightning....0 percent.
Max temperature.....80-90 F.
Min humidity........11-21%.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................0 percent.
15K Ft MSL Winds....North 5 to 10 mph.
Mixing Height.......2000 ft AGL until 1000. 11000 ft AGL after
1200.
Transport Winds.....Southeast 5 to 10 mph until 1200, then
northwest.
Smoke dispersal.....Poor until 0900. Fair after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.TUESDAY...Mostly clear. Lows 51-61. Highs 83-93. Winds less than
15 mph.
.WEDNESDAY...Partly cloudy. Lows 52-62. Highs 83-93. Winds less
than 15 mph.
.THURSDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 51-61. Highs 83-93. Winds less than 15 mph.
.FRIDAY...Mostly clear. Isolated showers and thunderstorms. Lows
51-61. Highs 82-92.
.SATURDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 51-61. Highs 79-89.
$$
COZ294-010100-
Southwest Colorado Upper West Forecast Area-
300 AM MDT Sun Aug 31 2025
.TODAY...
Sky/weather.........Mostly sunny (10-20%) until 1200, then partly
cloudy (30-40%). Isolated showers and
thunderstorms after 1200.
Chc of lightning....10 percent.
Max temperature.....66-76 F.
Min humidity........19-29%.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................20 percent.
15K Ft MSL Winds....South 5 to 10 mph.
Mixing Height.......1500 ft AGL until 0900. 9500 ft AGL after 1000.
Transport Winds.....Southeast 5 to 10 mph until 1200, then west.
Smoke dispersal.....Poor until 0900. Fair after 1200.
.TONIGHT...
Sky/weather.........Mostly clear (20-30%).
Chc of lightning....0 percent.
Min temperature.....46-56 F.
Max humidity........57-72%.
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming
downslope/downvalley 3 to 6 mph by sunset.
CWR.................0 percent.
15K Ft MSL Winds....North 5 to 10 mph shifting to the southwest
after midnight.
Mixing Height.......9000 ft AGL until 1900. 1000 ft AGL after 2000.
Transport Winds.....North 5 mph until 2400, then east.
Smoke dispersal.....Poor.
.LABOR DAY...
Sky/weather.........Mostly sunny (20-30%). Isolated showers and
thunderstorms after 1200.
Chc of lightning....10 percent.
Max temperature.....69-79 F.
Min humidity........13-23%.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................10 percent.
15K Ft MSL Winds....North 5 to 10 mph.
Mixing Height.......1000 ft AGL until 0900. 10000 ft AGL after
1000.
Transport Winds.....East 5 mph until 1200, then northwest.
Smoke dispersal.....Poor until 0900. Fair after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.TUESDAY...Mostly clear. Isolated showers and thunderstorms. Lows
43-53. Highs 73-83. Winds less than 15 mph.
.WEDNESDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows 44-54. Highs 73-83. Winds less than 15 mph.
.THURSDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 43-53. Highs 73-83. Winds less than 15 mph.
.FRIDAY...Mostly clear. Isolated showers and thunderstorms. Lows
43-53. Highs 72-82.
.SATURDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 43-53. Highs 69-79.
$$
COZ295-010100-
Southwest Colorado Upper East Forecast Area-
300 AM MDT Sun Aug 31 2025
.TODAY...
Sky/weather.........Mostly sunny (20-30%) until 1200, then partly
cloudy (30-40%). Isolated showers and
thunderstorms until 1200, scattered showers and
thunderstorms after 1200.
Chc of lightning....30 percent.
Max temperature.....70-80 F.
Min humidity........22-32%.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................40 percent.
15K Ft MSL Winds....West 5 to 10 mph.
Mixing Height.......2000 ft AGL until 0900, then 9500 ft AGL.
Transport Winds.....Southeast 5 mph until 1200, then west.
Smoke dispersal.....Poor until 0900. Fair after 1200.
.TONIGHT...
Sky/weather.........Partly cloudy (40-50%). Scattered showers and
thunderstorms until 2400, isolated showers after
2400.
Chc of lightning....20 percent.
Min temperature.....44-54 F.
Max humidity........69-84%.
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming
downslope/downvalley 3 to 6 mph by sunset.
CWR.................10 percent.
15K Ft MSL Winds....Northwest 5 to 10 mph.
Mixing Height.......6500 ft AGL until 2000, then 2000 ft AGL.
Transport Winds.....Northeast 5 mph.
Smoke dispersal.....Poor.
.LABOR DAY...
Sky/weather.........Mostly sunny (20-30%) until 1200, then partly
cloudy (30-40%). Patchy fog until 1200.
Scattered showers and thunderstorms after 1200.
Chc of lightning....20 percent.
Max temperature.....72-82 F.
Min humidity........19-29%.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................20 percent.
15K Ft MSL Winds....North 5 to 10 mph.
Mixing Height.......3000 ft AGL until 1000, then 9000 ft AGL.
Transport Winds.....Northwest 5 mph.
Smoke dispersal.....Poor until 0900. Fair after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.TUESDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows 43-53. Highs 73-83. Winds less than 15 mph.
.WEDNESDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows 43-53. Highs 73-83. Winds less than 15 mph.
.THURSDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 43-53. Highs 73-83. Winds less than 15 mph.
.FRIDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 43-53. Highs 72-82.
.SATURDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 43-53. Highs 70-80.
$$
UTZ485-010100-
Eastern Ashley National Forest-
300 AM MDT Sun Aug 31 2025
.TODAY...
Sky/weather.........Sunny (0-10%).
Chc of lightning....0 percent.
Max temperature.....69-79 F near 7000 feet
57-67 F near 10000 feet.
24 hr trend......1 degree cooler.
Min humidity........14-24% near 7000 feet
22-32% near 10000 feet.
24 hr trend......3% drier.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................0 percent.
Mixing Height.......3500 ft AGL until 1100, then 10500 ft AGL.
Transport Winds.....Northeast 5 mph until 1200, then northwest.
Clearing Index......600.
.TONIGHT...
Sky/weather.........Clear (0-10%).
Chc of lightning....0 percent.
Min temperature.....48-58 F near 7000 feet
35-45 F near 10000 feet.
24 hr trend......3 degrees warmer.
Max humidity........43-53% near 7000 feet
52-62% near 10000 feet.
24 hr trend......9% drier.
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming
downslope/downvalley 3 to 6 mph by sunset.
CWR.................0 percent.
Mixing Height.......9500 ft AGL until 1900. 1500 ft AGL after 2000.
Transport Winds.....Northeast 5 mph until 2400, then east.
Clearing Index......550 until 1900, then less than 500.
.LABOR DAY...
Sky/weather.........Near 7000 feet, mostly sunny (10-20%). Near
10000 feet, mostly sunny (10-20%) until 1200,
then partly cloudy (30-40%).
Chc of lightning....0 percent.
Max temperature.....70-80 F near 7000 feet
60-70 F near 10000 feet.
24 hr trend......3 degrees warmer.
Min humidity........13-23% near 7000 feet
20-30% near 10000 feet.
24 hr trend......2% wetter.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................0 percent.
Mixing Height.......2000 ft AGL until 1000. 10000 ft AGL after
1200.
Transport Winds.....Southeast 5 mph.
Clearing Index......Less than 500 until 1100, then 600.
.FORECAST FOR DAY 3 THROUGH 7...
.TUESDAY...Mostly clear. Lows 49-59. Highs 73-83. Winds less than
15 mph.
.WEDNESDAY...Mostly clear. Lows 50-60. Highs 72-82. Winds less
than 15 mph.
.THURSDAY...Mostly clear. Isolated showers and thunderstorms near
10000 feet. Lows 49-59. Highs 72-82. Winds less than 15 mph.
.FRIDAY...Mostly clear. Isolated showers and thunderstorms . Lows
48-58. Highs 71-81.
.SATURDAY...Partly cloudy. Scattered showers and thunderstorms .
Lows 49-59. Highs 70-80.
$$
UTZ486-010100-
Eastern Uinta Basin-
300 AM MDT Sun Aug 31 2025
.TODAY...
Sky/weather.........Sunny (0-10%).
Chc of lightning....0 percent.
Max temperature.....74-84 F near 5000 feet
63-73 F near 8000 feet.
24 hr trend......4 degrees warmer.
Min humidity........12-22%.
24 hr trend......11% drier.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................0 percent.
Mixing Height.......3000 ft AGL until 1100, then 11500 ft AGL.
Transport Winds.....Northeast 5 mph until 1200, then southwest.
Clearing Index......600.
.TONIGHT...
Sky/weather.........Clear (0-10%).
Chc of lightning....0 percent.
Min temperature.....50-60 F near 5000 feet
42-52 F near 8000 feet.
24 hr trend......2 degrees warmer.
Max humidity........34-44%.
24 hr trend......6% drier.
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming
downslope/downvalley 3 to 6 mph by sunset.
CWR.................0 percent.
Mixing Height.......11000 ft AGL until 1900. 1500 ft AGL after
2000.
Transport Winds.....Northeast 5 mph.
Clearing Index......Less than 500.
.LABOR DAY...
Sky/weather.........Sunny (0-10%).
Chc of lightning....0 percent.
Max temperature.....76-86 F near 5000 feet
65-75 F near 8000 feet.
24 hr trend......1 degree warmer.
Min humidity........11-16%.
24 hr trend......2% drier.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................0 percent.
Mixing Height.......3000 ft AGL until 1100, then 10000 ft AGL.
Transport Winds.....East 5 mph until 1200, then southwest.
Clearing Index......Less than 500 until 1200, then 600.
.FORECAST FOR DAY 3 THROUGH 7...
.TUESDAY...Mostly clear. Lows 53-63. Highs 78-88. Winds less than
15 mph.
.WEDNESDAY...Mostly clear. Lows 54-64. Highs 78-88. Winds less
than 15 mph.
.THURSDAY...Mostly clear. Lows 53-63. Highs 78-88. Winds less
than 15 mph.
.FRIDAY...Mostly clear. Isolated showers and thunderstorms near
8000 feet. Lows 53-63. Highs 77-87.
.SATURDAY...Partly cloudy. Isolated showers and thunderstorms .
Lows 54-64. Highs 76-86.
$$
UTZ487-010100-
Book Cliffs-
300 AM MDT Sun Aug 31 2025
.TODAY...
Sky/weather.........Sunny (0-10%).
Chc of lightning....0 percent.
Max temperature.....72-82 F near 5000 feet
67-77 F near 8000 feet.
24 hr trend......4 degrees warmer.
Min humidity........11-16%.
24 hr trend......8% drier.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................0 percent.
Mixing Height.......1500 ft AGL until 1000. 10500 ft AGL after
1100.
Transport Winds.....North 5 mph.
Clearing Index......Less than 500 until 1100. 900 after 1200.
.TONIGHT...
Sky/weather.........Clear (0-10%).
Chc of lightning....0 percent.
Min temperature.....52-62 F.
24 hr trend......1 degree warmer.
Max humidity........31-41%.
24 hr trend......18% drier.
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming
downslope/downvalley 3 to 6 mph by sunset.
CWR.................0 percent.
Mixing Height.......8000 ft AGL until 2000, then 1000 ft AGL.
Transport Winds.....Northeast 5 mph until 2400, then southeast.
Clearing Index......850 until 1900. Less than 500 after 2000.
.LABOR DAY...
Sky/weather.........Sunny (0-10%).
Chc of lightning....0 percent.
Max temperature.....77-87 F near 5000 feet
70-80 F near 8000 feet.
24 hr trend......2 degrees warmer.
Min humidity........9-14%.
24 hr trend......3% drier.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................0 percent.
Mixing Height.......1500 ft AGL until 1000. 9500 ft AGL after 1100.
Transport Winds.....North 5 mph.
Clearing Index......Less than 500 until 1200, then 750.
.FORECAST FOR DAY 3 THROUGH 7...
.TUESDAY...Clear. Lows 52-62. Highs 80-90. Winds less than
15 mph.
.WEDNESDAY...Mostly clear. Lows 54-64. Highs 80-90. Winds less
than 15 mph.
.THURSDAY...Mostly clear. Isolated showers and thunderstorms near
8000 feet. Lows 53-63. Highs 80-90. Winds less than 15 mph.
.FRIDAY...Mostly clear. Isolated showers and thunderstorms . Lows
53-63. Highs 80-90.
.SATURDAY...Partly cloudy. Isolated showers and thunderstorms
near 6000 feet and scattered showers and thunderstorms near
8000 feet. Lows 54-64. Highs 78-88.
$$
UTZ490-010100-
Colorado River Basin-
300 AM MDT Sun Aug 31 2025
.TODAY...
Sky/weather.........Sunny (0-10%).
Chc of lightning....0 percent.
Max temperature.....84-94 F near 5000 feet
72-82 F near 7000 feet.
24 hr trend......3 degrees warmer.
Min humidity........9-14%.
24 hr trend......10% drier.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................0 percent.
Mixing Height.......1500 ft AGL until 1000, then 11500 ft AGL.
Transport Winds.....Northeast 5 to 10 mph.
Clearing Index......Less than 500 until 1100, then 950.
.TONIGHT...
Sky/weather.........Clear (0-10%).
Chc of lightning....0 percent.
Min temperature.....56-66 F.
24 hr trend......2 degrees warmer.
Max humidity........24-34%.
24 hr trend......15% drier.
20-foot winds.......Downslope/downvalley winds 3 to 6 mph.
Localized gusts up to 20 mph in the evening.
CWR.................0 percent.
Mixing Height.......9500 ft AGL until 2000, then 1500 ft AGL.
Transport Winds.....Northeast 5 to 10 mph.
Clearing Index......850 until 1900. Less than 500 after 2000.
.LABOR DAY...
Sky/weather.........Sunny (0-10%).
Chc of lightning....0 percent.
Max temperature.....85-95 F near 5000 feet
74-84 F near 7000 feet.
24 hr trend......2 degrees warmer.
Min humidity........7-12%.
24 hr trend......2% drier.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................0 percent.
Mixing Height.......2500 ft AGL until 1100, then 10500 ft AGL.
Transport Winds.....North 5 mph.
Clearing Index......650.
.FORECAST FOR DAY 3 THROUGH 7...
.TUESDAY...Clear. Lows 57-67. Highs 86-96. Winds less than
15 mph.
.WEDNESDAY...Mostly clear. Lows 59-69. Highs 86-96. Winds less
than 15 mph.
.THURSDAY...Mostly clear. Lows 59-69. Highs 86-96. Winds less
than 15 mph.
.FRIDAY...Mostly clear. Isolated showers near 5000 feet and
isolated showers and thunderstorms near 7000 feet. Lows 59-69.
Highs 85-95.
.SATURDAY...Partly cloudy. Isolated showers and thunderstorms .
Lows 59-69. Highs 83-93.
$$
UTZ491-010100-
Southeast Utah-
300 AM MDT Sun Aug 31 2025
.TODAY...
Sky/weather.........Sunny (0-10%).
Chc of lightning....0 percent.
Max temperature.....81-91 F near 5000 feet
68-78 F near 8000 feet.
24 hr trend......2 degrees warmer.
Min humidity........12-17%.
24 hr trend......7% drier.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................0 percent.
Mixing Height.......1500 ft AGL until 1000. 11000 ft AGL after
1100.
Transport Winds.....Northeast 5 mph until 1200, then northwest.
Clearing Index......700.
.TONIGHT...
Sky/weather.........Clear (0-10%).
Chc of lightning....0 percent.
Min temperature.....57-67 F near 5000 feet
50-60 F near 8000 feet.
24 hr trend......2 degrees warmer.
Max humidity........34-44%.
24 hr trend......13% drier.
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming
downslope/downvalley 3 to 6 mph by sunset.
CWR.................0 percent.
Mixing Height.......9500 ft AGL until 2000, then 1000 ft AGL.
Transport Winds.....Northwest 5 mph until 2400, then east.
Clearing Index......650 until 2000, then less than 500.
.LABOR DAY...
Sky/weather.........Sunny (0-10%).
Chc of lightning....0 percent.
Max temperature.....83-93 F near 5000 feet
70-80 F near 8000 feet.
24 hr trend......1 degree warmer.
Min humidity........11-16%.
24 hr trend......2% wetter.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................0 percent.
Mixing Height.......2500 ft AGL until 1100, then 10500 ft AGL.
Transport Winds.....East 5 to 10 mph until 1200, then north.
Clearing Index......700.
.FORECAST FOR DAY 3 THROUGH 7...
.TUESDAY...Mostly clear. Lows 57-67. Highs 85-95. Winds less than
15 mph.
.WEDNESDAY...Partly cloudy. Lows 59-69. Highs 86-96. Winds less
than 15 mph.
.THURSDAY...Mostly clear. Isolated showers and thunderstorms near
8000 feet. Lows 58-68. Highs 85-95. Winds less than 15 mph.
.FRIDAY...Mostly clear. Isolated showers near 5000 feet and
isolated showers and thunderstorms near 8000 feet. Lows 57-67.
Highs 84-94.
.SATURDAY...Partly cloudy. Isolated showers and thunderstorms
near 5000 feet and scattered showers and thunderstorms near
8000 feet. Lows 57-67. Highs 81-91.
$$