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

Showers and Thunderstorms in the Southwest and Ohio Valley; Mountain Snow in the Northeast

Showers and thunderstorms, along with high-elevation snow, will begin to develop over parts of the Southwest late tonight and is expected to continue through Wednesday morning. Mountain snow over parts the Northeast will continue through Tuesday. A few strong to severe storms and heavy rainfall are possible across portions of the Lower Ohio Valley Tuesday. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Overcast

52°F

11°C

Humidity 92%
Wind Speed ENE 10 MPH
Barometer 29.88 in (1011.85 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 18 Nov 12:54 AM PST
Extended Forecast for

Napa Co. Airport CA

  • Overnight

    Overnight: Partly cloudy, with a steady temperature around 47. Northeast wind 7 to 13 mph.

    Low: 47 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Patchy fog before 10am. Otherwise, sunny, with a high near 61. Light and variable wind becoming west 8 to 13 mph in the morning.

    High: 61 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog. Otherwise, increasing clouds, with a low around 44. South southwest wind around 5 mph becoming calm in the evening.

    Low: 44 °F

    Patchy Fog

  • Wednesday

    Wednesday: Areas of fog before 7am. Otherwise, partly sunny, with a high near 58. Calm wind becoming east southeast around 6 mph in the morning.

    High: 58 °F

    Areas Fog
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Rain likely, mainly after 10pm. Cloudy, with a low around 48. South wind around 6 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 48 °F

    Rain Likely

  • Thursday

    Thursday: Rain likely, mainly before 10am. Mostly cloudy, with a high near 57. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 57 °F

    Rain Likely

  • Thursday Night

    Thursday Night: A 20 percent chance of rain before 10pm. Partly cloudy, with a low around 42.

    Low: 42 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a steady temperature around 47. Northeast wind 7 to 13 mph.
Tuesday
Patchy fog before 10am. Otherwise, sunny, with a high near 61. Light and variable wind becoming west 8 to 13 mph in the morning.
Tuesday Night
Patchy fog. Otherwise, increasing clouds, with a low around 44. South southwest wind around 5 mph becoming calm in the evening.
Wednesday
Areas of fog before 7am. Otherwise, partly sunny, with a high near 58. Calm wind becoming east southeast around 6 mph in the morning.
Wednesday Night
Rain likely, mainly after 10pm. Cloudy, with a low around 48. South wind around 6 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Rain likely, mainly before 10am. Mostly cloudy, with a high near 57. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
A 20 percent chance of rain before 10pm. Partly cloudy, with a low around 42.
Friday
Sunny, with a high near 62.
Friday Night
Mostly clear, with a low around 42.
Saturday
Patchy fog before 7am. Otherwise, sunny, with a high near 63.
Saturday Night
Patchy fog. Otherwise, mostly clear, with a low around 42.
Sunday
Patchy fog. Otherwise, mostly sunny, with a high near 61.
Sunday Night
Partly cloudy, with a low around 43.
Monday
Mostly sunny, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
Napa Co. Airport CA
 38.2°N 122.29°W (Elev. 20 ft)
Last Update:
12:26 am PST Nov 18, 2025
Forecast Valid:
1am PST Nov 18, 2025-6pm PST Nov 24, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation