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

39°F

4°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 30.46 in (1031.49 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 09 Jan 09:20 PM PST
Extended Forecast for

2 Miles SE Napa Co. Airport 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: Areas of frost between 4am and 5am. Otherwise, partly cloudy, with a low around 35. East northeast wind around 6 mph.

    Low: 35 °F

    Mostly Clear
    then Areas
    Frost

  • Saturday

    Saturday: Partly sunny, with a high near 53. East northeast wind 7 to 9 mph.

    High: 53 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 37. East northeast wind 3 to 5 mph.

    Low: 37 °F

    Mostly Cloudy

  • Sunday

    Sunday: Patchy frost before 8am. Otherwise, mostly sunny, with a high near 55. East northeast wind around 6 mph.

    High: 55 °F

    Patchy Frost
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 36. Calm wind.

    Low: 36 °F

    Mostly Clear

  • Monday

    Monday: Patchy frost before 7am. Otherwise, sunny, with a high near 55.

    High: 55 °F

    Patchy Frost
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Tuesday Night

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

    Low: 41 °F

    Mostly Clear

Detailed Forecast

Tonight
Areas of frost between 4am and 5am. Otherwise, partly cloudy, with a low around 35. East northeast wind around 6 mph.
Saturday
Partly sunny, with a high near 53. East northeast wind 7 to 9 mph.
Saturday Night
Mostly cloudy, with a low around 37. East northeast wind 3 to 5 mph.
Sunday
Patchy frost before 8am. Otherwise, mostly sunny, with a high near 55. East northeast wind around 6 mph.
Sunday Night
Mostly clear, with a low around 36. Calm wind.
Monday
Patchy frost before 7am. Otherwise, sunny, with a high near 55.
Monday Night
Mostly clear, with a low around 39.
Tuesday
Sunny, with a high near 58.
Tuesday Night
Mostly clear, with a low around 41.
Wednesday
Sunny, with a high near 60.
Wednesday Night
Mostly clear, with a low around 44.
Thursday
Sunny, with a high near 61.
Thursday Night
Mostly clear, with a low around 44.
Friday
Sunny, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Napa Co. Airport CA
 38.18°N 122.26°W (Elev. 56 ft)
Last Update:
1:09 pm PST Jan 9, 2026
Forecast Valid:
9pm PST Jan 9, 2026-6pm PST Jan 16, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation