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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 >

Hazardous Weather Conditions

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

45°F

7°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.33 in (1027.09 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 28 Jan 09:20 PM PST
Extended Forecast for

Napa CA

Coastal Flood Advisory January 29, 06:00am until February 1, 12:00pm
Click here for hazard details and duration
Coastal Flood Advisory

  • Tonight

    Tonight: Patchy fog. Otherwise, partly cloudy, with a low around 40. Calm wind.

    Low: 40 °F

    Patchy Fog

  • Thursday

    Thursday: Areas of fog before 10am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 63. Calm wind.

    High: 63 °F

    Areas Fog
    then Sunny

  • Thursday Night

    Thursday Night: Patchy fog. Otherwise, mostly cloudy, with a low around 41. Calm wind.

    Low: 41 °F

    Patchy Fog

  • Friday

    Friday: Areas of fog before 11am. Otherwise, partly sunny, with a high near 63. Light east northeast wind.

    High: 63 °F

    Areas Fog
    then Partly
    Sunny

  • Friday Night

    Friday Night: Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 9am. Otherwise, partly sunny, with a high near 63.

    High: 63 °F

    Patchy Fog
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Patchy fog. Otherwise, mostly cloudy, with a low around 43.

    Low: 43 °F

    Patchy Fog

  • Sunday

    Sunday: Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 62.

    High: 62 °F

    Areas Fog
    then Mostly
    Cloudy

  • Sunday Night

    Sunday Night: Patchy fog. Otherwise, partly cloudy, with a low around 42.

    Low: 42 °F

    Patchy Fog

Detailed Forecast

Tonight
Patchy fog. Otherwise, partly cloudy, with a low around 40. Calm wind.
Thursday
Areas of fog before 10am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 63. Calm wind.
Thursday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 41. Calm wind.
Friday
Areas of fog before 11am. Otherwise, partly sunny, with a high near 63. Light east northeast wind.
Friday Night
Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 42. Calm wind.
Saturday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 63.
Saturday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 43.
Sunday
Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 62.
Sunday Night
Patchy fog. Otherwise, partly cloudy, with a low around 42.
Monday
Areas of fog before 10am. Otherwise, mostly sunny, with a high near 64.
Monday Night
Patchy fog. Otherwise, mostly clear, with a low around 42.
Tuesday
Patchy fog. Otherwise, sunny, with a high near 64.
Tuesday Night
Patchy fog. Otherwise, mostly clear, with a low around 42.
Wednesday
Patchy fog. Otherwise, sunny, with a high near 66.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Napa CA
 38.29°N 122.29°W (Elev. 20 ft)
Last Update:
7:43 pm PST Jan 28, 2026
Forecast Valid:
9pm PST Jan 28, 2026-6pm PST Feb 4, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation