Major Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold in the North-Central U.S.

A large, long-duration winter storm is expected to bring widespread heavy snow, sleet, and freezing rain from the Southern Rockies/Plains into the Mid-South beginning Friday, spreading eastward to the Mid-Atlantic and New England this weekend. An Arctic front will bring frigid temperatures and gusty winds that will lead to dangerous wind chills from the Northern Plains and Upper Midwest. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Mist

43°F

6°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 43°F (6°C)
Visibility 5.00 mi
Last update 22 Jan 07:00 AM PST
Extended Forecast for

3 Miles NNW Lake Berryessa CA

  • Today

    Today: Sunny, with a high near 67. Calm wind.

    High: 67 °F

    Sunny

  • Tonight

    Tonight: Widespread dense fog, mainly between 9pm and 5am.  Otherwise, mostly clear, with a low around 41. Calm wind.

    Low: 41 °F

    Dense Fog

  • Friday

    Friday: Widespread dense fog, mainly before 8am.  Otherwise, sunny, with a high near 63. Calm wind.

    High: 63 °F

    Dense Fog
    then Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 44. North wind 5 to 8 mph, with gusts as high as 21 mph.

    Low: 44 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 62. North wind 9 to 13 mph, with gusts as high as 28 mph.

    High: 62 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 59.

    High: 59 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 67. Calm wind.
Tonight
Widespread dense fog, mainly between 9pm and 5am. Otherwise, mostly clear, with a low around 41. Calm wind.
Friday
Widespread dense fog, mainly before 8am. Otherwise, sunny, with a high near 63. Calm wind.
Friday Night
Mostly clear, with a low around 44. North wind 5 to 8 mph, with gusts as high as 21 mph.
Saturday
Sunny, with a high near 62. North wind 9 to 13 mph, with gusts as high as 28 mph.
Saturday Night
Mostly clear, with a low around 38.
Sunday
Partly sunny, with a high near 59.
Sunday Night
Mostly cloudy, with a low around 38.
Monday
Mostly sunny, with a high near 61.
Monday Night
Patchy fog before 1am, then patchy fog after 2am. Otherwise, partly cloudy, with a low around 38.
Tuesday
Areas of fog. Otherwise, partly sunny, with a high near 60.
Tuesday Night
A slight chance of rain. Mostly cloudy, with a low around 43.
Wednesday
A chance of rain. Patchy fog. Otherwise, mostly cloudy, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Lake Berryessa CA
 38.61°N 122.28°W (Elev. 554 ft)
3:11 am PST Jan 22, 2026
7am PST Jan 22, 2026-6pm PST Jan 28, 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