Another Arctic Blast in the East; Eastern U.S. Winter Storm

A powerful Arctic blast will bring dangerously cold, record low temperatures to the upper Ohio Valley, Mid-Atlantic, Gulf Coast and Southeast U.S. this weekend. A rapidly deepening storm will produce widespread heavy snow and wind from the southern Appalachians across the Carolinas and southern Virginia into Sunday. Storm-force winds and coastal flooding will be possible along the East Coast. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

43°F

6°C

Humidity 93%
Wind Speed NNE 3 MPH
Barometer 30.24 in (1024.04 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 31 Jan 03:20 AM PST
Extended Forecast for

3 Miles SSE Lake Berryessa CA

  • Overnight

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

    Low: 43 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 64. Light and variable wind.

    High: 64 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 45. Calm wind.

    Low: 45 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 66. Calm wind.

    High: 66 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 44. Northwest wind around 8 mph.

    Low: 44 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Tuesday Night

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

    Low: 45 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 43. Calm wind.
Saturday
Partly sunny, with a high near 64. Light and variable wind.
Saturday Night
Mostly cloudy, with a low around 45. Calm wind.
Sunday
Partly sunny, with a high near 66. Calm wind.
Sunday Night
Mostly clear, with a low around 44. Northwest wind around 8 mph.
Monday
Sunny, with a high near 67.
Monday Night
Mostly clear, with a low around 44.
Tuesday
Sunny, with a high near 67.
Tuesday Night
Mostly clear, with a low around 45.
Wednesday
Sunny, with a high near 69.
Wednesday Night
Mostly clear, with a low around 46.
Thursday
Sunny, with a high near 68.
Thursday Night
Partly cloudy, with a low around 47.
Friday
Sunny, with a high near 68.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Lake Berryessa CA
 38.53°N 122.23°W (Elev. 991 ft)
2:18 am PST Jan 31, 2026
3am PST Jan 31, 2026-6pm PST Feb 6, 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