National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Vance Brand Airport (KLMO)

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

Fair

40°F

4°C

Humidity 34%
Wind Speed Calm
Barometer 30.08 in
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Last update 1 Feb 11:35 pm MST
Extended Forecast for

Longmont CO

  • Tonight

    Tonight: Mostly cloudy, with a low around 31. Southwest wind around 8 mph.

    Low: 31 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 56. West wind 6 to 9 mph becoming east northeast in the morning.

    High: 56 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Mostly clear, with a low around 25. North northwest wind 5 to 7 mph becoming west after midnight.

    Low: 25 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 52. West wind 5 to 10 mph becoming north in the afternoon. Winds could gust as high as 17 mph.

    High: 52 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of rain before 8pm, then a slight chance of rain and snow between 8pm and 11pm, then a slight chance of snow after 11pm. Mostly cloudy, with a low around 26. Northwest wind 3 to 8 mph. Chance of precipitation is 20%.

    Low: 26 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Snow

  • Wednesday

    Wednesday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 31. Southwest wind around 8 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 56. West wind 6 to 9 mph becoming east northeast in the morning.
Monday Night
Mostly clear, with a low around 25. North northwest wind 5 to 7 mph becoming west after midnight.
Tuesday
Mostly sunny, with a high near 52. West wind 5 to 10 mph becoming north in the afternoon. Winds could gust as high as 17 mph.
Tuesday Night
A slight chance of rain before 8pm, then a slight chance of rain and snow between 8pm and 11pm, then a slight chance of snow after 11pm. Mostly cloudy, with a low around 26. Northwest wind 3 to 8 mph. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 51.
Wednesday Night
Mostly clear, with a low around 30.
Thursday
Sunny, with a high near 62.
Thursday Night
Mostly clear, with a low around 30.
Friday
Sunny, with a high near 60.
Friday Night
Mostly clear, with a low around 31.
Saturday
Mostly sunny, with a high near 61.
Saturday Night
Mostly clear, with a low around 31.
Sunday
Sunny, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Longmont CO
 40.16°N 105.12°W (Elev. 5000 ft)
Last Update:
2:06 pm MST Feb 1, 2026
Forecast Valid:
11pm MST Feb 1, 2026-6pm MST Feb 8, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation