Prolonged Extreme Cold; Eastern U.S. Winter Storm

Another Arctic blast will surge south across the northern Plains Thursday night, crossing the Midwest and reaching the Gulf Coast Friday night. Confidence continues to increase for significant heavy snow across much of the Southern Appalachians, Carolinas, and southern Mid-Atlantic Friday into Sunday. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

48°F

9°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 30.33 in (1027.09 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 28 Jan 09:00 PM PST
Extended Forecast for

7 Miles SSE Lake Berryessa CA

  • Tonight

    Tonight: Partly cloudy, with a low around 40. Calm wind.

    Low: 40 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 62. Calm wind.

    High: 62 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 61. Light northeast wind.

    High: 61 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 60.

    High: 60 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 40. Calm wind.
Thursday
Sunny, with a high near 62. Calm wind.
Thursday Night
Partly cloudy, with a low around 43. Calm wind.
Friday
Partly sunny, with a high near 61. Light northeast wind.
Friday Night
Mostly cloudy, with a low around 44. Calm wind.
Saturday
Partly sunny, with a high near 62.
Saturday Night
Mostly cloudy, with a low around 44.
Sunday
Mostly cloudy, with a high near 60.
Sunday Night
Partly cloudy, with a low around 44.
Monday
Sunny, with a high near 62.
Monday Night
Mostly clear, with a low around 43.
Tuesday
Sunny, with a high near 64.
Tuesday Night
Mostly clear, with a low around 43.
Wednesday
Sunny, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles SSE Lake Berryessa CA
 38.48°N 122.22°W (Elev. 1798 ft)
7:43 pm PST Jan 28, 2026
9pm PST Jan 28, 2026-6pm PST Feb 4, 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