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

64°F

18°C

Humidity 16%
Wind Speed SW 8 mph
Barometer 30.11 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Last update 21 Mar 1:55 am MDT
Extended Forecast for

Boulder CO

Red Flag Warning March 21, 02:00pm until March 21, 10:00pm
Click here for hazard details and duration
Red Flag Warning

  • Overnight

    Overnight: Mostly clear, with a low around 55. West wind around 7 mph.

    Low: 55 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 91. Breezy, with a west wind 5 to 15 mph, with gusts as high as 24 mph.

    High: 91 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 49. Breezy, with a west wind 10 to 15 mph becoming light north northwest after midnight. Winds could gust as high as 24 mph.

    Low: 49 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 68. Calm wind becoming east 5 to 7 mph in the afternoon. Winds could gust as high as 15 mph.

    High: 68 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 43. East wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 15 mph.

    Low: 43 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 75.

    High: 75 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 81.

    High: 81 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 55. West wind around 7 mph.
Saturday
Mostly sunny, with a high near 91. Breezy, with a west wind 5 to 15 mph, with gusts as high as 24 mph.
Saturday Night
Partly cloudy, with a low around 49. Breezy, with a west wind 10 to 15 mph becoming light north northwest after midnight. Winds could gust as high as 24 mph.
Sunday
Mostly sunny, with a high near 68. Calm wind becoming east 5 to 7 mph in the afternoon. Winds could gust as high as 15 mph.
Sunday Night
Mostly cloudy, with a low around 43. East wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 15 mph.
Monday
Partly sunny, with a high near 75.
Monday Night
Partly cloudy, with a low around 49.
Tuesday
Partly sunny, with a high near 81.
Tuesday Night
Partly cloudy, with a low around 53.
Wednesday
Mostly sunny, with a high near 86.
Wednesday Night
Partly cloudy, with a low around 49.
Thursday
Mostly sunny, with a high near 75.
Thursday Night
A slight chance of rain. Partly cloudy, with a low around 41.
Friday
Mostly sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Boulder CO
 40°N 105.25°W (Elev. 5377 ft)
Last Update:
12:46 am MDT Mar 21, 2026
Forecast Valid:
2am MDT Mar 21, 2026-6pm MDT Mar 27, 2026
 
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