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 >

Current conditions at

Napa, Napa County Airport (KAPC)

Lat: 38.2075°NLon: 122.27944°WElev: 33.0ft.

Clear

45°F

7°C

Humidity 100%
Wind Speed WSW 8 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 26 Dec 08:00 PM PST
Extended Forecast for

3 Miles SSE Lake Berryessa CA

  • Tonight

    Tonight: A 40 percent chance of showers, mainly before 11pm.  Patchy fog after 1am.  Otherwise, partly cloudy, with a low around 41. Southwest wind around 5 mph becoming calm  in the evening.

    Low: 41 °F

    Chance
    Showers and
    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 7am.  Otherwise, mostly sunny, with a high near 50. North wind 3 to 7 mph.

    High: 50 °F

    Patchy Fog
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 38. North northwest wind around 6 mph, with gusts as high as 18 mph.

    Low: 38 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 51. North wind around 7 mph.

    High: 51 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 38. North wind 3 to 5 mph.

    Low: 38 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Patchy frost after 5am.  Otherwise, mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear
    then Patchy
    Frost

Detailed Forecast

Tonight
A 40 percent chance of showers, mainly before 11pm. Patchy fog after 1am. Otherwise, partly cloudy, with a low around 41. Southwest wind around 5 mph becoming calm in the evening.
Saturday
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 50. North wind 3 to 7 mph.
Saturday Night
Increasing clouds, with a low around 38. North northwest wind around 6 mph, with gusts as high as 18 mph.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 51. North wind around 7 mph.
Sunday Night
Mostly clear, with a low around 38. North wind 3 to 5 mph.
Monday
Sunny, with a high near 54.
Monday Night
Mostly clear, with a low around 36.
Tuesday
Sunny, with a high near 54.
Tuesday Night
Patchy frost after 5am. Otherwise, mostly clear, with a low around 37.
Wednesday
Mostly sunny, with a high near 54.
Wednesday Night
A slight chance of showers. Patchy fog. Otherwise, mostly cloudy, with a low around 40.
New Year's Day
A chance of showers. Areas of fog. Otherwise, mostly cloudy, with a high near 50.
Thursday Night
Showers likely. Patchy fog. Otherwise, mostly cloudy, with a low around 43.
Friday
A chance of showers. Patchy fog. Otherwise, partly sunny, with a high near 50.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Lake Berryessa CA
 38.53°N 122.23°W (Elev. 991 ft)
12:27 pm PST Dec 26, 2025
8pm PST Dec 26, 2025-6pm PST Jan 2, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database