National Weather Service United States Department of Commerce

Showers and Storms in the East; Dangerously Hot and Dry in the West

Scattered showers and storms are expected across portions of the Central and Eastern U.S. through the end of the week. Meanwhile, dangerous heat will intensify across the Desert Southwest and Intermountain West. Hot, dry weather and increasing winds will allow elevated wildfire conditions to return to the northern Intermountain West, where air quality issues persist from ongoing fires. Read More >

COZ205-082315-
COZ205-082315-
Colorado River Headwaters-
105 AM MDT Sat Aug 8 2026

Fire Weather Planning Forecast for Wrn Colorado and Ern Utah
National Weather Service Grand Junction CO
105 AM MDT Sat Aug 8 2026

.DISCUSSION...Well above normal temperatures and mainly dry 
conditions continue through the weekend into early next before
a wetter and cooler scenario arrives. Isolated storms will be
possible the next few afternoons before the better moisture
arrives...which could lead to new fire starts. Localized critical
fire weather conditions will be possible as well during the peak
heating hours when afternoon breezes pick up.  

...GUSTY ERRATIC WINDS CAN BE EXPECTED NEAR ANY SHOWERS
OR THUNDERSTORMS...
...THE SMOKE DATA IS CALCULATED FROM AN AVERAGE AT 6000 FEET MSL...


.TODAY...
Sky/weather.........Mostly sunny (20-30%) until 1200, then partly 
                    cloudy (40-50%). Patchy smoke after 1200. 
                    Isolated showers after 1200. 
Chc of lightning....0 percent. 
Max temperature.....84-94 F. 
Min humidity........7-12%. 
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 10 to 15 mph. 
Mixing Height.......1500 ft AGL until 1000. 14000 ft AGL after 
                    1100. 
Transport Winds.....Southwest 5 mph until 1200, then northwest 10 
                    to 15 mph. 
Smoke dispersal.....Poor until 0900. Excellent after 1200. 

.TONIGHT...
Sky/weather.........Partly cloudy (50-60%). Patchy smoke until 
                    2400. 
Chc of lightning....0 percent. 
Min temperature.....56-66 F. 
Max humidity........29-39%. 
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 10 to 15 mph. 
Mixing Height.......11000 ft AGL until 2000, then 500 ft AGL. 
Transport Winds.....North 5 to 10 mph until 2400, then southeast. 
Smoke dispersal.....Good until 2100, then poor. 

.SUNDAY...
Sky/weather.........Partly cloudy (50-60%) until 1200, then mostly 
                    cloudy (60-70%). Isolated showers. Isolated 
                    thunderstorms after 1200. 
Chc of lightning....10 percent. 
Max temperature.....81-91 F. 
Min humidity........12-17%. 
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....West 10 to 15 mph. 
Mixing Height.......1000 ft AGL until 0900. 11000 ft AGL after 
                    1000. 
Transport Winds.....West 5 mph. 
Smoke dispersal.....Poor until 0900. Very good after 1200. 

.FORECAST FOR DAY 3 THROUGH 7...
.MONDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 52-62. Highs 78-88. Winds less than 15 mph. 
.TUESDAY...Partly cloudy. Scattered showers and isolated
thunderstorms. Lows 49-59. Highs 78-88. Winds less than 15 mph. 
.WEDNESDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 50-60. Highs 75-85. Winds less than 15 mph. 
.THURSDAY...Mostly cloudy. Numerous thunderstorms and scattered
showers. Lows 48-58. Highs 69-79. 
.FRIDAY...Mostly cloudy. Numerous showers and thunderstorms. Lows
46-56. Highs 68-78.