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

Storm Systems to Impact the Central and Eastern U.S. Through the Weekend

Two storm systems will track through the central and eastern U.S. today through this weekend with areas of gusty winds, rain and heavy snow. Severe thunderstorms and heavy to excessive rainfall is forecast today from the Lower Mississippi River Valley to the Tennessee Valley. Damaging winds, a few tornadoes, and areas of flooding are possible. Read More >

Hazardous Weather Conditions

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

48°F

9°C

Humidity 62%
Wind Speed E 10 MPH
Barometer 30.43 in (1030.48 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 09 Jan 05:54 PM PST
Extended Forecast for

Napa CA

Cold Weather Advisory January 10, 01:00am until January 10, 09:00am
Click here for hazard details and duration
Cold Weather Advisory

  • Tonight

    Tonight: Patchy frost after 3am. Otherwise, partly cloudy, with a low around 37. Calm wind.

    Low: 37 °F

    Mostly Clear
    then Patchy
    Frost

  • Saturday

    Saturday: Patchy frost before 8am. Otherwise, partly sunny, with a high near 56. Calm wind becoming east northeast around 6 mph in the morning.

    High: 56 °F

    Patchy Frost
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 37. Calm wind.

    Low: 37 °F

    Mostly Cloudy

  • Sunday

    Sunday: Patchy frost before 8am. Otherwise, mostly sunny, with a high near 58. Light east northeast wind.

    High: 58 °F

    Patchy Frost
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 37. Calm wind.

    Low: 37 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Monday Night

    Monday Night: Patchy fog after 5am. Otherwise, mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 9am. Otherwise, sunny, with a high near 60.

    High: 60 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy frost after 3am. Otherwise, partly cloudy, with a low around 37. Calm wind.
Saturday
Patchy frost before 8am. Otherwise, partly sunny, with a high near 56. Calm wind becoming east northeast around 6 mph in the morning.
Saturday Night
Mostly cloudy, with a low around 37. Calm wind.
Sunday
Patchy frost before 8am. Otherwise, mostly sunny, with a high near 58. Light east northeast wind.
Sunday Night
Mostly clear, with a low around 37. Calm wind.
Monday
Sunny, with a high near 58.
Monday Night
Patchy fog after 5am. Otherwise, mostly clear, with a low around 39.
Tuesday
Patchy fog before 9am. Otherwise, sunny, with a high near 60.
Tuesday Night
Mostly clear, with a low around 41.
Wednesday
Sunny, with a high near 62.
Wednesday Night
Mostly clear, with a low around 44.
Thursday
Sunny, with a high near 64.
Thursday Night
Mostly clear, with a low around 45.
Friday
Sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Napa CA
 38.3°N 122.26°W (Elev. 82 ft)
Last Update:
1:09 pm PST Jan 9, 2026
Forecast Valid:
6pm PST Jan 9, 2026-6pm PST Jan 16, 2026
 
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