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

45°F

7°C

Humidity 27%
Wind Speed W 5 mph
Barometer 30.10 in
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 15 Dec 8:15 pm MST
Extended Forecast for

Longmont CO

High Wind Watch December 17, 11:00am until December 18, 12:00am
Fire Weather Watch December 17, 11:00am until December 17, 06:00pm
Click here for hazard details and duration
High Wind Watch
Fire Weather Watch

  • Tonight

    Tonight: Mostly clear, with a low around 34. West wind around 7 mph.

    Low: 34 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 63. West wind around 7 mph.

    High: 63 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy during the early evening, then becoming mostly clear, with a low around 35. West southwest wind around 6 mph.

    Low: 35 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 64. Windy, with a southwest wind 7 to 17 mph increasing to 18 to 28 mph in the afternoon. Winds could gust as high as 41 mph.

    High: 64 °F

    Mostly Sunny
    and Windy

  • Wednesday Night

    Wednesday Night: A chance of rain, mixing with snow after 8pm, then gradually ending. Partly cloudy, with a low around 29. Blustery, with a northwest wind 7 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.

    Low: 29 °F

    Chance
    Rain/Snow and
    Blustery then
    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 66. Breezy.

    High: 66 °F

    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 34. West wind around 7 mph.
Tuesday
Mostly sunny, with a high near 63. West wind around 7 mph.
Tuesday Night
Mostly cloudy during the early evening, then becoming mostly clear, with a low around 35. West southwest wind around 6 mph.
Wednesday
Mostly sunny, with a high near 64. Windy, with a southwest wind 7 to 17 mph increasing to 18 to 28 mph in the afternoon. Winds could gust as high as 41 mph.
Wednesday Night
A chance of rain, mixing with snow after 8pm, then gradually ending. Partly cloudy, with a low around 29. Blustery, with a northwest wind 7 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 50.
Thursday Night
Partly cloudy, with a low around 34.
Friday
Mostly sunny, with a high near 66. Breezy.
Friday Night
Partly cloudy, with a low around 43.
Saturday
A slight chance of rain before 11am. Mostly sunny, with a high near 61.
Saturday Night
Partly cloudy, with a low around 32.
Sunday
Mostly sunny, with a high near 55.
Sunday Night
Partly cloudy, with a low around 33.
Monday
Mostly sunny, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Longmont CO
 40.16°N 105.09°W (Elev. 4980 ft)
Last Update:
2:41 pm MST Dec 15, 2025
Forecast Valid:
8pm MST Dec 15, 2025-6pm MST Dec 22, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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