Late January Extreme Cold; Watching East Coast Storm Threat This Weekend

The next blast of Arctic air surges south down the Plains, across the Great Lakes and through the Southeast and East Friday through Saturday. This could be longest duration of cold in several decades. Forecast models are being closely monitored for potential of another significant winter storm to impact the eastern United States this coming weekend. Confidence in coastal impacts has increased. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Mostly Cloudy

54°F

12°C

Humidity 87%
Wind Speed ESE 4 MPH
Barometer 30.32 in (1026.75 mb)
Dewpoint 50°F (10°C)
Visibility 9.00 mi
Last update 27 Jan 10:20 PM PST
Extended Forecast for

2 Miles SE Lake Berryessa CA

  • Tonight

    Tonight: Rain likely.  Mostly cloudy, with a low around 48. South wind 5 to 7 mph becoming calm  after midnight.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Rain Likely

  • Wednesday

    Wednesday: Mostly sunny, with a high near 60. North northwest wind 3 to 6 mph.

    High: 60 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 45. Light northwest wind.

    Low: 45 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly sunny, with a high near 62. Calm wind.

    High: 62 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 47. Calm wind.

    Low: 47 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 63.

    High: 63 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 47.

    Low: 47 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A slight chance of rain after 4am.  Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy
    then Slight
    Chance Rain

Detailed Forecast

Tonight
Rain likely. Mostly cloudy, with a low around 48. South wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Mostly sunny, with a high near 60. North northwest wind 3 to 6 mph.
Wednesday Night
Increasing clouds, with a low around 45. Light northwest wind.
Thursday
Mostly sunny, with a high near 62. Calm wind.
Thursday Night
Mostly cloudy, with a low around 47. Calm wind.
Friday
Partly sunny, with a high near 63.
Friday Night
Mostly cloudy, with a low around 47.
Saturday
Partly sunny, with a high near 64.
Saturday Night
A slight chance of rain after 4am. Mostly cloudy, with a low around 49.
Sunday
A chance of rain, mainly after 10am. Partly sunny, with a high near 61.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 48.
Monday
Mostly sunny, with a high near 62.
Monday Night
Mostly clear, with a low around 48.
Tuesday
Sunny, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Lake Berryessa CA
 38.55°N 122.21°W (Elev. 440 ft)
12:26 pm PST Jan 27, 2026
10pm PST Jan 27, 2026-6pm PST Feb 3, 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