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 and Breezy

81°F

27°C

Humidity 7%
Wind Speed W 23 G 30 mph
Barometer 29.58 in
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 22 Apr 4:35 pm MDT
Extended Forecast for

Boulder CO

Red Flag Warning April 23, 11:00am until April 23, 07:00pm
Red Flag Warning April 22, 04:41pm until April 23, 12:00am
Click here for hazard details and duration
Red Flag Warning
Red Flag Warning
  •  
    Red Flag Warning April 22, 04:41pm until April 23, 12:00am

    NOW until 12:00am Thu

    Red Flag Warning

  • Tonight

    Low: 44 °F

    Mostly Clear
    and Breezy

  • Thursday

    Thursday: A 20 percent chance of showers after noon. Mostly sunny, with a high near 64. Breezy, with a south wind 10 to 15 mph becoming west northwest 18 to 23 mph in the morning. Winds could gust as high as 47 mph.

    High: 64 °F

    Breezy. Sunny
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before midnight. Mostly clear, with a low around 39. Breezy, with a west northwest wind 16 to 21 mph becoming light west after midnight. Winds could gust as high as 32 mph.

    Low: 39 °F

    Slight Chance
    Showers and
    Breezy then
    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers after noon. Mostly sunny, with a high near 69. Light and variable wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 26 mph.

    High: 69 °F

    Sunny then
    Slight Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 38. West wind 5 to 10 mph becoming light west northwest in the evening. Winds could gust as high as 25 mph.

    Low: 38 °F

    Partly Cloudy

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.

    Low: 42 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers likely, then showers and possibly a thunderstorm after noon. Mostly cloudy, with a high near 61.

    High: 61 °F

    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 44. Breezy, with a west southwest wind 13 to 23 mph, with gusts as high as 34 mph.
Thursday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 64. Breezy, with a south wind 10 to 15 mph becoming west northwest 18 to 23 mph in the morning. Winds could gust as high as 47 mph.
Thursday Night
A 20 percent chance of showers before midnight. Mostly clear, with a low around 39. Breezy, with a west northwest wind 16 to 21 mph becoming light west after midnight. Winds could gust as high as 32 mph.
Friday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 69. Light and variable wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 26 mph.
Friday Night
Partly cloudy, with a low around 38. West wind 5 to 10 mph becoming light west northwest in the evening. Winds could gust as high as 25 mph.
Saturday
A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 66.
Saturday Night
Showers likely. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.
Sunday
Showers likely, then showers and possibly a thunderstorm after noon. Mostly cloudy, with a high near 61.
Sunday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, with a low around 38.
Monday
A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 61.
Monday Night
A chance of showers. Mostly cloudy, with a low around 38.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 69.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 43.
Wednesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 64.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Boulder CO
 40°N 105.25°W (Elev. 5377 ft)
Last Update:
12:46 pm MDT Apr 22, 2026
Forecast Valid:
4pm MDT Apr 22, 2026-6pm MDT Apr 29, 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