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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

44°F

7°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.35 in (1027.77 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 29 Jan 01:54 AM PST
Extended Forecast for

5 Miles W Napa Co. Airport CA

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

  • Overnight

    Overnight: Areas of fog. Otherwise, mostly cloudy, with a low around 40. Calm wind.

    Low: 40 °F

    Areas Fog

  • Thursday

    Thursday: Areas of fog before 10am. Otherwise, mostly sunny, with a high near 61. Calm wind becoming southeast around 5 mph.

    High: 61 °F

    Areas Fog
    then Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 9pm. Otherwise, increasing clouds, with a low around 41. Calm wind.

    Low: 41 °F

    Patchy Fog

  • Friday

    Friday: Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 61. Calm wind becoming east around 6 mph in the afternoon.

    High: 61 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 42. Light northeast wind.

    Low: 42 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 44.

    Low: 44 °F

    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 61.

    High: 61 °F

    Patchy Fog
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: Patchy fog after 1am. Otherwise, partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy
    then Patchy
    Fog

Detailed Forecast

Overnight
Areas of fog. Otherwise, mostly cloudy, with a low around 40. Calm wind.
Thursday
Areas of fog before 10am. Otherwise, mostly sunny, with a high near 61. Calm wind becoming southeast around 5 mph.
Thursday Night
Patchy fog after 9pm. Otherwise, increasing clouds, with a low around 41. Calm wind.
Friday
Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 61. Calm wind becoming east around 6 mph in the afternoon.
Friday Night
Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 42. Light northeast wind.
Saturday
Partly sunny, with a high near 62.
Saturday Night
Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 44.
Sunday
Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 61.
Sunday Night
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 42.
Monday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 62.
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 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles W Napa Co. Airport CA
 38.21°N 122.38°W (Elev. 3 ft)
Last Update:
12:26 am PST Jan 29, 2026
Forecast Valid:
2am PST Jan 29, 2026-6pm PST Feb 4, 2026
 
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Additional Resources

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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