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.

Rain

54°F

12°C

Humidity 87%
Wind Speed ESE 5 MPH
Barometer 30.37 in (1028.45 mb)
Dewpoint 50°F (10°C)
Visibility 8.00 mi
Last update 28 Jan 02:00 AM PST
Extended Forecast for

7 Miles SSE Lake Berryessa CA

  • Overnight

    Overnight: Rain likely.  Mostly cloudy, with a steady temperature around 48. Calm wind becoming west around 5 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Rain Likely

  • Wednesday

    Wednesday: Patchy fog between 7am and 8am.  Otherwise, mostly sunny, with a high near 57. Calm wind becoming north around 6 mph in the afternoon.

    High: 57 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 41. Calm wind.

    Low: 41 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly sunny, with a high near 61. Light north northeast wind.

    High: 61 °F

    Mostly Sunny

  • Thursday Night

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

    Low: 44 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny

  • Friday Night

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

    Low: 44 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A slight chance of rain after 4am.  Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy
    then Slight
    Chance Rain

Detailed Forecast

Overnight
Rain likely. Mostly cloudy, with a steady temperature around 48. Calm wind becoming west around 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Patchy fog between 7am and 8am. Otherwise, mostly sunny, with a high near 57. Calm wind becoming north around 6 mph in the afternoon.
Wednesday Night
Increasing clouds, with a low around 41. Calm wind.
Thursday
Mostly sunny, with a high near 61. Light north northeast wind.
Thursday Night
Mostly cloudy, with a low around 44. Calm wind.
Friday
Partly sunny, with a high near 62.
Friday Night
Mostly cloudy, with a low around 44.
Saturday
Partly sunny, with a high near 62.
Saturday Night
A slight chance of rain after 4am. Mostly cloudy, with a low around 45.
Sunday
A chance of rain, mainly after 10am. Partly sunny, with a high near 60.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 45.
Monday
Mostly sunny, with a high near 60.
Monday Night
Mostly clear, with a low around 44.
Tuesday
Sunny, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles SSE Lake Berryessa CA
 38.48°N 122.22°W (Elev. 1798 ft)
12:26 am PST Jan 28, 2026
2am PST Jan 28, 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