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

Heavy Rain and Mountain Snow Lingers in California; Winter Storm Impacting the Great Lakes and Northeast U.S.

An atmospheric river will wind down through today across California with lingering heavy rainfall, heavy mountain snow, and gusty winds. A wintry mix of freezing rain, sleet, and snow will cause hazardous travel conditions for the Great Lakes into the northern Mid-Atlantic and southern New England today through Saturday morning. Areas of tree damage and power outages are possible. Read More >

Hazardous Weather Conditions

Current conditions at

Boulder Municipal Airport (KBDU)

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

Fair

50°F

10°C

Humidity 32%
Wind Speed Calm
Barometer 29.78 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 27 Dec 12:15 am MST
Extended Forecast for

4 Miles SW Boulder CO

  • Overnight

    Overnight: Partly cloudy, with a low around 37. West southwest wind 10 to 13 mph, with gusts as high as 21 mph.

    Low: 37 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 48. West wind 10 to 14 mph, with gusts as high as 22 mph.

    High: 48 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Snow, mainly after 11pm. The snow could be heavy at times. Low around 17. West wind 6 to 10 mph becoming east after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

    Low: 17 °F

    Heavy Snow

  • Sunday

    Sunday: Snow likely, mainly before 11am. Cloudy through mid morning, then gradual clearing, with a high near 23. Northeast wind 7 to 9 mph becoming west in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    High: 23 °F

    Snow Likely
    then Slight
    Chance Snow

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 14. West wind around 11 mph, with gusts as high as 17 mph.

    Low: 14 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 35.

    High: 35 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 22.

    Low: 22 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 44.

    High: 44 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 37. West southwest wind 10 to 13 mph, with gusts as high as 21 mph.
Saturday
Mostly sunny, with a high near 48. West wind 10 to 14 mph, with gusts as high as 22 mph.
Saturday Night
Snow, mainly after 11pm. The snow could be heavy at times. Low around 17. West wind 6 to 10 mph becoming east after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.
Sunday
Snow likely, mainly before 11am. Cloudy through mid morning, then gradual clearing, with a high near 23. Northeast wind 7 to 9 mph becoming west in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Sunday Night
Mostly clear, with a low around 14. West wind around 11 mph, with gusts as high as 17 mph.
Monday
Sunny, with a high near 35.
Monday Night
Mostly clear, with a low around 22.
Tuesday
Sunny, with a high near 44.
Tuesday Night
Partly cloudy, with a low around 27.
Wednesday
Mostly sunny, with a high near 48.
Wednesday Night
Mostly cloudy, with a low around 30.
New Year's Day
Mostly cloudy, with a high near 45.
Thursday Night
Mostly cloudy, with a low around 32.
Friday
Partly sunny, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Boulder CO
 39.98°N 105.3°W (Elev. 7772 ft)
Last Update:
9:39 pm MST Dec 26, 2025
Forecast Valid:
12am MST Dec 27, 2025-6pm MST Jan 2, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation