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 96%
Wind Speed N 3 MPH
Barometer 30.4 in (1029.46 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 11 Jan 03:54 AM PST
Extended Forecast for

Napa 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: 35 °F

    Areas Frost

  • Sunday

    Sunday: Areas of frost before 9am. Otherwise, mostly sunny, with a high near 58. Calm wind.

    High: 58 °F

    Areas Frost
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 36. Calm wind.

    Low: 36 °F

    Partly Cloudy

  • Monday

    Monday: Patchy fog before 9am. Otherwise, sunny, with a high near 58. Light east northeast wind.

    High: 58 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Patchy fog after 4am. Otherwise, mostly clear, with a low around 38. Calm wind.

    Low: 38 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 7am. Otherwise, sunny, with a high near 60.

    High: 60 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 4am. Otherwise, mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 10am. Otherwise, sunny, with a high near 62.

    High: 62 °F

    Patchy Fog
    then Sunny

Detailed Forecast

Overnight
Areas of frost. Otherwise, partly cloudy, with a low around 35. Calm wind.
Sunday
Areas of frost before 9am. Otherwise, mostly sunny, with a high near 58. Calm wind.
Sunday Night
Partly cloudy, with a low around 36. Calm wind.
Monday
Patchy fog before 9am. Otherwise, sunny, with a high near 58. Light east northeast wind.
Monday Night
Patchy fog after 4am. Otherwise, mostly clear, with a low around 38. Calm wind.
Tuesday
Patchy fog before 7am. Otherwise, sunny, with a high near 60.
Tuesday Night
Patchy fog after 4am. Otherwise, mostly clear, with a low around 40.
Wednesday
Patchy fog before 10am. Otherwise, sunny, with a high near 62.
Wednesday Night
Patchy fog after 1am. Otherwise, mostly clear, with a low around 43.
Thursday
Sunny, with a high near 63.
Thursday Night
Mostly clear, with a low around 44.
Friday
Sunny, with a high near 63.
Friday Night
Partly cloudy, with a low around 44.
Saturday
Mostly sunny, with a high near 63.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Napa CA
 38.29°N 122.29°W (Elev. 20 ft)
Last Update:
12:26 am PST Jan 11, 2026
Forecast Valid:
4am PST Jan 11, 2026-6pm PST Jan 17, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

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Chance of Precipitation