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

39°F

4°C

Humidity 95%
Wind Speed NNE 3 MPH
Barometer 30.43 in (1030.48 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 10 Jan 10:54 PM PST
Extended Forecast for

2 Miles SSW Lake Berryessa CA

  • Tonight

    Tonight: Partly cloudy, with a low around 41. Light north wind.

    Low: 41 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 57. North wind around 5 mph becoming calm in the afternoon.

    High: 57 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 42. Light north wind.

    Low: 42 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 56. North northeast wind around 5 mph.

    High: 56 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 44. Calm wind becoming north around 5 mph after midnight.

    Low: 44 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 47.

    Low: 47 °F

    Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 41. Light north wind.
Sunday
Mostly sunny, with a high near 57. North wind around 5 mph becoming calm in the afternoon.
Sunday Night
Mostly clear, with a low around 42. Light north wind.
Monday
Sunny, with a high near 56. North northeast wind around 5 mph.
Monday Night
Mostly clear, with a low around 44. Calm wind becoming north around 5 mph after midnight.
Tuesday
Sunny, with a high near 59.
Tuesday Night
Mostly clear, with a low around 45.
Wednesday
Sunny, with a high near 61.
Wednesday Night
Clear, with a low around 47.
Thursday
Sunny, with a high near 62.
Thursday Night
Mostly clear, with a low around 46.
Friday
Sunny, with a high near 62.
Friday Night
Mostly clear, with a low around 46.
Saturday
Sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Lake Berryessa CA
 38.54°N 122.26°W (Elev. 1824 ft)
Last Update:
2:45 pm PST Jan 10, 2026
Forecast Valid:
11pm PST Jan 10, 2026-6pm PST Jan 17, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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