Significant Severe Weather in the Upper Midwest; Blizzard Conditions in the Cascades; Heavy Rain and Thunderstorms in Hawaii

Significant severe thunderstorms, including the risk for strong to intense tornadoes, are expected across the Upper Midwest this afternoon and evening. An atmospheric river will bring blizzard conditions to the northern Cascades. A powerful Kona storm is expected to impact Hawaii today into Saturday, bringing heavy rainfall and strong winds. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

64°F

18°C

Humidity 48%
Wind Speed W 9 MPH
Barometer 30.15 in (1021.0 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 10 Mar 05:20 PM PDT
Extended Forecast for

3 Miles NNW Lake Berryessa CA

  • Tonight

    Tonight: Mostly clear, with a low around 45. Light and variable wind.

    Low: 45 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 80. Light and variable wind.

    High: 80 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 48. Calm wind.

    Low: 48 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 86. Calm wind.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 49. Light west wind.

    Low: 49 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 45. Light and variable wind.
Wednesday
Sunny, with a high near 80. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 48. Calm wind.
Thursday
Sunny, with a high near 86. Calm wind.
Thursday Night
Mostly clear, with a low around 49. Light west wind.
Friday
Mostly sunny, with a high near 85.
Friday Night
Partly cloudy, with a low around 50.
Saturday
Sunny, with a high near 86.
Saturday Night
Mostly clear, with a low around 56.
Sunday
Mostly sunny, with a high near 91.
Sunday Night
Mostly cloudy, with a low around 60.
Monday
Mostly sunny, with a high near 93.
Monday Night
Mostly clear, with a low around 60.
Tuesday
Mostly sunny, with a high near 93.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Lake Berryessa CA
 38.61°N 122.28°W (Elev. 554 ft)
1:26 pm PDT Mar 10, 2026
5pm PDT Mar 10, 2026-6pm PDT Mar 17, 2026
 
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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