Excessive Rainfall Potential for the Southeast; Heat Expands for Center of the Nation; Critical Fire Weather for Pacific Northwest

Flash flooding threatens areas from the Tennessee Valley to the Carolinas as storms repeat along a stalled front. Monsoonal storms may trigger flooding in the Southwest. Dangerous heat expands across the Desert Southwest, Plains, mid-Mississippi Valley and Southern Tier. Critical fire weather for interior Pacific Northwest. Cooler, drier air brings brief relief to the Great Lakes and Northeast. Read More >

Hazardous Weather Conditions

Current conditions at

Vance Brand Airport (KLMO)

Lat: 40.16°NLon: 105.16°WElev: 5039ft.

Fair

84°F

29°C

Humidity	45%
Wind Speed	E 5 mph
Barometer	30.21 in
Dewpoint	60°F (16°C)
Visibility	10.00 mi
Heat Index	84°F (29°C)
Last update	24 Jul 11:15 am MDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

4 Miles N Longmont CO

Heat Advisory July 25, 11:00am until July 25, 09:00pm

Heat Advisory July 26, 11:00am until July 26, 09:00pm

Click here for hazard details and duration

Heat Advisory

Today
High: 96 °F
Sunny
Tonight
Low: 66 °F
Mostly Clear
Saturday
High: 99 °F
Sunny then
Slight Chance
T-storms
Saturday Night
Low: 66 °F
Slight Chance
T-storms then
Partly Cloudy
Sunday
High: 99 °F
Sunny then
Slight Chance
T-storms
Sunday Night
Low: 67 °F
Mostly Cloudy
Monday
High: 97 °F
Mostly Sunny
then Chance
T-storms
Monday Night
Low: 65 °F
Chance
T-storms then
Slight Chance
Showers
Tuesday
High: 93 °F
Mostly Sunny
then Chance
T-storms

Detailed Forecast

Today

Sunny, with a high near 96. East northeast wind around 6 mph.

Tonight

Mostly clear, with a low around 66. East northeast wind around 5 mph becoming calm after midnight.

Saturday

A 20 percent chance of showers and thunderstorms after 3pm. Sunny and hot, with a high near 99. Calm wind becoming south southwest 5 to 9 mph in the afternoon. Winds could gust as high as 16 mph.

Saturday Night

A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 66. South southwest wind 5 to 9 mph becoming west after midnight. Winds could gust as high as 16 mph.

Sunday

A 20 percent chance of showers and thunderstorms after noon. Mostly sunny and hot, with a high near 99. Calm wind becoming north northwest around 6 mph in the afternoon. Winds could gust as high as 15 mph.

Sunday Night

Mostly cloudy, with a low around 67.

Monday

A 40 percent chance of showers and thunderstorms after noon. Partly sunny and hot, with a high near 97.

Monday Night

A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 65.

Tuesday

A chance of showers and thunderstorms after noon. Partly sunny, with a high near 93.

Tuesday Night

Showers likely and possibly a thunderstorm before midnight, then a slight chance of showers. Mostly cloudy, with a low around 63.

Wednesday

A chance of showers and thunderstorms. Mostly sunny, with a high near 93.