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

60°F

16°C

Humidity 20%
Wind Speed N 5 mph
Barometer 30.14 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Last update 1 Feb 2:15 pm MST
Extended Forecast for

Longmont CO

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 62. East southeast wind around 6 mph.

    High: 62 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 30. Southwest wind 6 to 8 mph.

    Low: 30 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 56. West northwest wind 6 to 9 mph becoming southeast in the afternoon.

    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 southwest after midnight.

    Low: 25 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 52. West southwest wind 5 to 11 mph becoming north in the afternoon. Winds could gust as high as 18 mph.

    High: 52 °F

    Partly 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. 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 29.

    Low: 29 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 62. East southeast wind around 6 mph.
Tonight
Mostly cloudy, with a low around 30. Southwest wind 6 to 8 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 56. West northwest wind 6 to 9 mph becoming southeast in the afternoon.
Monday Night
Mostly clear, with a low around 25. North northwest wind 5 to 7 mph becoming west southwest after midnight.
Tuesday
Partly sunny, with a high near 52. West southwest wind 5 to 11 mph becoming north in the afternoon. Winds could gust as high as 18 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. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 51.
Wednesday Night
Mostly clear, with a low around 29.
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 30.
Saturday
Mostly sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Longmont CO
 40.16°N 105.09°W (Elev. 4980 ft)
Last Update:
2:06 pm MST Feb 1, 2026
Forecast Valid:
2pm MST Feb 1, 2026-6pm MST Feb 7, 2026
 
Forecast Discussion
 
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Additional Resources

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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