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

Hazardous Weather Conditions

Current conditions at

Vance Brand Airport (KLMO)

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

Fair

47°F

8°C

Humidity 21%
Wind Speed S 7 mph
Barometer 30.21 in
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 29 Jan 3:55 pm MST
Extended Forecast for

Longmont CO

  • Tonight

    Tonight: Mostly clear, with a low around 21. West wind around 6 mph becoming light and variable.

    Low: 21 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 46. Light and variable wind becoming east northeast 5 to 8 mph in the afternoon.

    High: 46 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 20. East southeast wind around 6 mph becoming calm in the evening.

    Low: 20 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 54. West wind 3 to 6 mph. Winds could gust as high as 15 mph.

    High: 54 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 26. West wind 3 to 6 mph.

    Low: 26 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 59.

    High: 59 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 21. West wind around 6 mph becoming light and variable.
Friday
Mostly sunny, with a high near 46. Light and variable wind becoming east northeast 5 to 8 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 20. East southeast wind around 6 mph becoming calm in the evening.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 54. West wind 3 to 6 mph. Winds could gust as high as 15 mph.
Saturday Night
Mostly clear, with a low around 26. West wind 3 to 6 mph.
Sunday
Sunny, with a high near 58.
Sunday Night
Partly cloudy, with a low around 30.
Monday
Partly sunny, with a high near 59.
Monday Night
Partly cloudy, with a low around 26.
Tuesday
A slight chance of rain and snow. Mostly sunny, with a high near 48.
Tuesday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 23.
Wednesday
Mostly sunny, with a high near 48.
Wednesday Night
Mostly clear, with a low around 24.
Thursday
Sunny, with a high near 58.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Longmont CO
 40.16°N 105.12°W (Elev. 5000 ft)
Last Update:
2:21 pm MST Jan 29, 2026
Forecast Valid:
4pm MST Jan 29, 2026-6pm MST Feb 5, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation