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

30°F

-1°C

Humidity 75%
Wind Speed Calm
Barometer 29.95 in
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 4 Dec 2:15 pm MST
Extended Forecast for

Longmont CO

  • This Afternoon

    This Afternoon: Sunny, with a high near 33. South southwest wind 6 to 8 mph.

    High: 33 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 18. West southwest wind 6 to 9 mph becoming northwest after midnight. Winds could gust as high as 15 mph.

    Low: 18 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 35. West wind around 6 mph becoming east in the afternoon.

    High: 35 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of snow showers after 11pm. Partly cloudy, with a low around 20. West southwest wind 3 to 7 mph. Winds could gust as high as 15 mph.

    Low: 20 °F

    Slight Chance
    Snow Showers

  • Saturday

    Saturday: A chance of snow showers before 8am, then a chance of rain and snow showers between 8am and 11am, then a slight chance of rain showers after 11am. Partly sunny, with a high near 46. Northwest wind 9 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

    High: 46 °F

    Chance
    Rain/Snow
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 22.

    Low: 22 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 41.

    High: 41 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 22.

    Low: 22 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 33. South southwest wind 6 to 8 mph.
Tonight
Mostly cloudy, with a low around 18. West southwest wind 6 to 9 mph becoming northwest after midnight. Winds could gust as high as 15 mph.
Friday
Mostly sunny, with a high near 35. West wind around 6 mph becoming east in the afternoon.
Friday Night
A 20 percent chance of snow showers after 11pm. Partly cloudy, with a low around 20. West southwest wind 3 to 7 mph. Winds could gust as high as 15 mph.
Saturday
A chance of snow showers before 8am, then a chance of rain and snow showers between 8am and 11am, then a slight chance of rain showers after 11am. Partly sunny, with a high near 46. Northwest wind 9 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 22.
Sunday
Sunny, with a high near 41.
Sunday Night
Partly cloudy, with a low around 22.
Monday
Mostly sunny, with a high near 48.
Monday Night
Partly cloudy, with a low around 27.
Tuesday
Partly sunny, with a high near 52.
Tuesday Night
A slight chance of rain and snow showers. Mostly cloudy, with a low around 35.
Wednesday
A chance of rain and snow showers. Partly sunny, with a high near 52.
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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:
2:21 pm MST Dec 4, 2025
Forecast Valid:
2pm MST Dec 4, 2025-6pm MST Dec 10, 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