Winter Weather in the Eastern U.S.; Heavy Rains Begin Across the Southern Plains into the Ohio Valley

A wintry mix may impact travel across portions of the Mid-Atlantic through the morning and the Northeast U.S. through Tuesday. Heavy rain and thunderstorms may cause a flooding threat across the Southern Plains into the Ohio Valley beginning Tuesday. Fire weather concerns will continue across portions of the central and southern High Plains through Wednesday. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

54°F

12°C

Humidity 93%
Wind Speed W 3 MPH
Barometer 30.1 in (1019.3 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 02 Mar 08:35 PM PST
Extended Forecast for

3 Miles SSE Lake Berryessa CA

  • Tonight

    Tonight: Patchy fog before 3am, then patchy fog after 4am.  Otherwise, mostly clear, with a low around 45. Calm wind.

    Low: 45 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Areas of dense fog before 8am.  Otherwise, sunny, with a high near 68. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 68 °F

    Areas Dense
    Fog then
    Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after midnight.  Otherwise, increasing clouds, with a low around 45. Light west southwest wind.

    Low: 45 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Mostly cloudy through mid morning, then gradual clearing, with a high near 64. Calm wind becoming west northwest 5 to 9 mph in the morning. Winds could gust as high as 20 mph.

    High: 64 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 43. Northwest wind around 7 mph.

    Low: 43 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 49.

    Low: 49 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 54.

    Low: 54 °F

    Clear

Detailed Forecast

Tonight
Patchy fog before 3am, then patchy fog after 4am. Otherwise, mostly clear, with a low around 45. Calm wind.
Tuesday
Areas of dense fog before 8am. Otherwise, sunny, with a high near 68. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
Patchy fog after midnight. Otherwise, increasing clouds, with a low around 45. Light west southwest wind.
Wednesday
Mostly cloudy through mid morning, then gradual clearing, with a high near 64. Calm wind becoming west northwest 5 to 9 mph in the morning. Winds could gust as high as 20 mph.
Wednesday Night
Clear, with a low around 43. Northwest wind around 7 mph.
Thursday
Sunny, with a high near 64.
Thursday Night
Clear, with a low around 49.
Friday
Sunny, with a high near 68.
Friday Night
Clear, with a low around 54.
Saturday
Sunny, with a high near 73.
Saturday Night
Mostly clear, with a low around 51.
Sunday
Sunny, with a high near 76.
Sunday Night
Partly cloudy, with a low around 52.
Monday
Mostly sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Lake Berryessa CA
 38.53°N 122.23°W (Elev. 991 ft)
12:26 pm PST Mar 2, 2026
8pm PST Mar 2, 2026-6pm PDT Mar 9, 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