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

36°F

2°C

Humidity 93%
Wind Speed N 3 MPH
Barometer 30.42 in (1030.14 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 11 Jan 02:20 AM PST
Extended Forecast for

5 Miles W Napa Co. Airport CA

Cold Weather Advisory until January 11, 09:00am
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory until January 11, 09:00am

    NOW until 9:00am Sun

    Cold Weather Advisory

  • Overnight

    Low: 34 °F

    Areas Frost

  • Sunday

    Sunday: Areas of frost before 9am. Otherwise, mostly sunny, with a high near 57. Calm wind becoming south southeast around 5 mph.

    High: 57 °F

    Areas Frost
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Patchy fog after 5am. Otherwise, partly cloudy, with a low around 36. Calm wind.

    Low: 36 °F

    Partly Cloudy
    then Patchy
    Fog

  • Monday

    Monday: Patchy fog before 10am. Otherwise, sunny, with a high near 56. Calm wind becoming east around 5 mph in the afternoon.

    High: 56 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Patchy fog between 10pm and 1am. Otherwise, mostly clear, with a low around 37. Calm wind.

    Low: 37 °F

    Patchy Fog

  • Tuesday

    Tuesday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after midnight. Otherwise, mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

Detailed Forecast

Overnight
Areas of frost. Otherwise, mostly cloudy, with a low around 34. Calm wind.
Sunday
Areas of frost before 9am. Otherwise, mostly sunny, with a high near 57. Calm wind becoming south southeast around 5 mph.
Sunday Night
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 36. Calm wind.
Monday
Patchy fog before 10am. Otherwise, sunny, with a high near 56. Calm wind becoming east around 5 mph in the afternoon.
Monday Night
Patchy fog between 10pm and 1am. Otherwise, mostly clear, with a low around 37. Calm wind.
Tuesday
Sunny, with a high near 59.
Tuesday Night
Patchy fog after midnight. Otherwise, mostly clear, with a low around 40.
Wednesday
Sunny, with a high near 60.
Wednesday Night
Mostly clear, with a low around 43.
Thursday
Sunny, with a high near 62.
Thursday Night
Mostly clear, with a low around 44.
Friday
Sunny, with a high near 62.
Friday Night
Partly cloudy, with a low around 44.
Saturday
Mostly sunny, with a high near 61.
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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 11, 2026
Forecast Valid:
2am PST Jan 11, 2026-6pm PST Jan 17, 2026
 
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Additional Resources

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