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

Hazardous Weather Conditions

Current conditions at

Boulder Municipal Airport (KBDU)

Lat: 40.04°NLon: 105.23°WElev: 5288ft.

Fair

37°F

3°C

Humidity 48%
Wind Speed SW 7 mph
Barometer 29.97 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 6 Dec 11:35 pm MST
Extended Forecast for

Longmont CO

  • Tonight

    Tonight: Partly cloudy, with a low around 23. West wind around 8 mph.

    Low: 23 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 43. West northwest wind around 7 mph becoming south in the afternoon.

    High: 43 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 23. West wind around 6 mph.

    Low: 23 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 49. West wind around 7 mph, with gusts as high as 16 mph.

    High: 49 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 31. West southwest wind 7 to 10 mph, with gusts as high as 21 mph.

    Low: 31 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 57. Breezy.

    High: 57 °F

    Partly Sunny
    then Partly
    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 34.

    Low: 34 °F

    Slight Chance
    Rain

  • Wednesday

    Wednesday: A slight chance of rain. Partly sunny, with a high near 56. Breezy.

    High: 56 °F

    Slight Chance
    Rain and
    Breezy

  • Wednesday Night

    Wednesday Night: A chance of rain. Mostly cloudy, with a low around 35. Breezy.

    Low: 35 °F

    Chance Rain
    and Breezy

Detailed Forecast

Tonight
Partly cloudy, with a low around 23. West wind around 8 mph.
Sunday
Sunny, with a high near 43. West northwest wind around 7 mph becoming south in the afternoon.
Sunday Night
Partly cloudy, with a low around 23. West wind around 6 mph.
Monday
Mostly sunny, with a high near 49. West wind around 7 mph, with gusts as high as 16 mph.
Monday Night
Partly cloudy, with a low around 31. West southwest wind 7 to 10 mph, with gusts as high as 21 mph.
Tuesday
Partly sunny, with a high near 57. Breezy.
Tuesday Night
A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 34.
Wednesday
A slight chance of rain. Partly sunny, with a high near 56. Breezy.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 35. Breezy.
Thursday
A chance of rain and snow. Partly sunny, with a high near 47.
Thursday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 25.
Friday
Partly sunny, with a high near 46.
Friday Night
Partly cloudy, with a low around 24.
Saturday
Sunny, with a high near 51.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Longmont CO
 40.19°N 105.09°W (Elev. 5010 ft)
Last Update:
1:36 pm MST Dec 6, 2025
Forecast Valid:
11pm MST Dec 6, 2025-6pm MST Dec 13, 2025
 
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