National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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

Yountville 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: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 65. Calm wind.

    High: 65 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Patchy fog. Otherwise, mostly cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Patchy Fog

  • Friday

    Friday: Areas of fog before 9am. Otherwise, partly sunny, with a high near 64. Calm wind.

    High: 64 °F

    Areas Fog
    then Partly
    Sunny

  • Friday Night

    Friday Night: Patchy fog between midnight and 2am. Otherwise, mostly cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 8am. Otherwise, partly sunny, with a high near 64.

    High: 64 °F

    Patchy Fog
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 44.

    Low: 44 °F

    Patchy Fog

  • Sunday

    Sunday: Mostly cloudy, with a high near 62.

    High: 62 °F

    Mostly Cloudy

  • Sunday Night

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

    Low: 42 °F

    Patchy Fog

Detailed Forecast

Overnight
Areas of fog. Otherwise, mostly cloudy, with a low around 40. Calm wind.
Thursday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 65. Calm wind.
Thursday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 42. Calm wind.
Friday
Areas of fog before 9am. Otherwise, partly sunny, with a high near 64. Calm wind.
Friday Night
Patchy fog between midnight and 2am. Otherwise, mostly cloudy, with a low around 42. Calm wind.
Saturday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 64.
Saturday Night
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 44.
Sunday
Mostly cloudy, with a high near 62.
Sunday Night
Patchy fog. Otherwise, partly cloudy, with a low around 42.
Monday
Areas of fog before 9am. Otherwise, sunny, with a high near 65.
Monday Night
Patchy fog. Otherwise, mostly clear, with a low around 42.
Tuesday
Sunny, with a high near 66.
Tuesday Night
Mostly clear, with a low around 42.
Wednesday
Sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Yountville CA
 38.4°N 122.34°W (Elev. 184 ft)
Last Update:
12:26 am PST Jan 29, 2026
Forecast Valid:
2am PST Jan 29, 2026-6pm PST Feb 4, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation