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

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

63°F

17°C

Humidity 55%
Wind Speed S 9 MPH
Barometer 30.15 in (1021.0 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 10 Mar 01:35 PM PDT
Extended Forecast for

7 Miles SE Lake Berryessa CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 70. North wind around 6 mph.

    High: 70 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 46. East northeast wind around 6 mph becoming west in the evening.

    Low: 46 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 76. Northwest wind around 6 mph.

    High: 76 °F

    Sunny

  • Wednesday Night

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

    Low: 49 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 81. Light north northwest wind.

    High: 81 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 80.

    High: 80 °F

    Partly Sunny

  • Friday Night

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

    Low: 50 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 70. North wind around 6 mph.
Tonight
Mostly clear, with a low around 46. East northeast wind around 6 mph becoming west in the evening.
Wednesday
Sunny, with a high near 76. Northwest wind around 6 mph.
Wednesday Night
Mostly clear, with a low around 49. Light west northwest wind.
Thursday
Sunny, with a high near 81. Light north northwest wind.
Thursday Night
Mostly clear, with a low around 50.
Friday
Partly sunny, with a high near 80.
Friday Night
Mostly cloudy, with a low around 50.
Saturday
Sunny, with a high near 82.
Saturday Night
Mostly clear, with a low around 56.
Sunday
Mostly sunny, with a high near 86.
Sunday Night
Mostly cloudy, with a low around 58.
Monday
Mostly sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
7 Miles SE Lake Berryessa CA
 38.52°N 122.14°W (Elev. 886 ft)
Last Update:
1:26 pm PDT Mar 10, 2026
Forecast Valid:
1pm PDT Mar 10, 2026-6pm PDT Mar 16, 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