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

Storm Systems to Impact the Central and Eastern U.S. Through the Weekend

Two storm systems will track through the central and eastern U.S. today through this weekend with areas of gusty winds, rain and heavy snow. Severe thunderstorms and heavy to excessive rainfall is forecast today from the Lower Mississippi River Valley to the Tennessee Valley. Damaging winds, a few tornadoes, and areas of flooding are possible. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

37°F

3°C

Humidity 74%
Wind Speed N 0 MPH
Barometer 30.42 in (1030.14 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 09 Jan 08:30 AM PST
Extended Forecast for

5 Miles SSW Lake Berryessa CA

  • Today

    Today: Sunny, with a high near 51. North northeast wind around 7 mph.

    High: 51 °F

    Sunny

  • Tonight

    Tonight: Patchy frost after 3am. Otherwise, mostly clear, with a low around 36. Light north northeast wind.

    Low: 36 °F

    Mostly Clear
    then Patchy
    Frost

  • Saturday

    Saturday: Areas of frost before 7am. Otherwise, mostly sunny, with a high near 52. North northeast wind around 6 mph.

    High: 52 °F

    Areas Frost
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 38. Light north wind.

    Low: 38 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 55. North northeast wind around 5 mph.

    High: 55 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 51. North northeast wind around 7 mph.
Tonight
Patchy frost after 3am. Otherwise, mostly clear, with a low around 36. Light north northeast wind.
Saturday
Areas of frost before 7am. Otherwise, mostly sunny, with a high near 52. North northeast wind around 6 mph.
Saturday Night
Mostly cloudy, with a low around 38. Light north wind.
Sunday
Mostly sunny, with a high near 55. North northeast wind around 5 mph.
Sunday Night
Mostly clear, with a low around 39.
Monday
Sunny, with a high near 58.
Monday Night
Mostly clear, with a low around 42.
Tuesday
Sunny, with a high near 60.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
Sunny, with a high near 63.
Wednesday Night
Mostly clear, with a low around 46.
Thursday
Sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Lake Berryessa CA
 38.5°N 122.28°W (Elev. 1355 ft)
Last Update:
12:26 am PST Jan 9, 2026
Forecast Valid:
8am PST Jan 9, 2026-6pm PST Jan 15, 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