
Record setting heat is expected over the next several days from the Intermountain West through the northern Plains. Furthermore, fire weather concerns increase with dry and breezy conditions. Meanwhile, heavy rainfall and severe thunderstorm threats for the Ohio/Tennessee Valleys, central Appalachians and Southeast today. The threat shifts to central Gulf Coast and across central Texas this week. Read More >
COZ207-131115-
COZ207-131115-
Southwest Colorado Lower Forecast Area-
104 PM MDT Sun Jul 12 2026
Fire Weather Planning Forecast for Wrn Colorado and Ern Utah
National Weather Service Grand Junction CO
104 PM MDT Sun Jul 12 2026
.DISCUSSION...High pressure remains in control resulting in very
hot temperatures across the region. A gusty east/southeasterly
flow is expected across the southern and central mountains and
Four Corners region again tonight. A modest surge of moisture
will lead to increasing chances for afternoon showers and storms
each day this week. Many of these storms will track to the west
with easterly flow aloft. Stay alert for these abnormal storm
motions and outflows!
...GUSTY ERRATIC WINDS CAN BE EXPECTED NEAR ANY SHOWERS
OR THUNDERSTORMS...
...THE SMOKE DATA IS CALCULATED FROM AN AVERAGE AT 6000 FEET MSL...
.TONIGHT...
Sky/weather.........Partly cloudy (40-50%). Isolated showers and
thunderstorms until 2400. Patchy smoke.
Chc of lightning....10 percent.
Min temperature.....65-75 F.
Max humidity........37-47%.
20-foot winds.......Upslope/upvalley winds 3 to 6 mph becoming
southeast 10 to 15 mph after midnight.
Localized gusts up to 30 mph.
CWR.................10 percent.
15K Ft MSL Winds....Southeast 5 to 10 mph.
Mixing Height.......11000 ft AGL until 2000, then 1000 ft AGL.
Transport Winds.....Southeast 5 to 10 mph.
Smoke dispersal.....Fair until 2100, then poor.
.MONDAY...
Sky/weather.........Mostly sunny (20-30%) until 1200, then partly
cloudy (40-50%). Patchy smoke. Isolated showers
until 1200, scattered showers and thunderstorms
after 1200.
Chc of lightning....20 percent.
Max temperature.....89-99 F.
Min humidity........13-23%.
20-foot winds.......Southeast winds 10 to 15 mph in the morning
becoming upslope/upvalley 4 to 8 mph by 1100.
Localized gusts up to 30 mph.
CWR.................30 percent.
15K Ft MSL Winds....East 5 to 10 mph.
Mixing Height.......1500 ft AGL until 0900. 9000 ft AGL after 1200.
Transport Winds.....Southeast 5 to 10 mph.
Smoke dispersal.....Poor until 0900. Good after 1200.
.MONDAY NIGHT...
Sky/weather.........Partly cloudy (40-50%). Isolated showers and
thunderstorms until 2400. Patchy smoke.
Chc of lightning....20 percent.
Min temperature.....61-71 F.
Max humidity........47-57%.
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....Northeast 10 to 15 mph increasing to 15 to 20
mph after midnight.
Mixing Height.......6000 ft AGL until 2000, then 1000 ft AGL.
Transport Winds.....Southeast 5 to 10 mph.
Smoke dispersal.....Poor.
.TUESDAY...
Sky/weather.........Mostly sunny (10-20%) until 1200, then partly
cloudy (30-40%). Patchy smoke until 1200.
Scattered showers and thunderstorms after 1200.
Chc of lightning....30 percent.
Max temperature.....87-97 F.
Min humidity........16-26%.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................30 percent.
15K Ft MSL Winds....Northeast 15 to 20 mph decreasing to 10 to 15
mph in the afternoon.
Mixing Height.......1500 ft AGL until 0900. 12000 ft AGL after
1200.
Transport Winds.....East 5 to 10 mph.
Smoke dispersal.....Poor until 0900. Good after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.WEDNESDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 59-69. Highs 86-96. South winds 10 to 20 mph with gusts to
35 mph.
.THURSDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 58-68. Highs 88-98. Winds less than 15 mph.
.FRIDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 57-67. Highs 87-97. Winds less than 15 mph.
.SATURDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 56-66. Highs 87-97.
.SUNDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 56-66. Highs 88-98.