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

Thunderstorms and Widespread Rainfall Across the Southern Plains

Isolated severe thunderstorms and widespread showers may produce flash flooding across the Southern Plains through Thursday. Numerous instances of flash flooding are expected in south-central Texas, including portions of the Hill Country; and an additional area across eastern Oklahoma into the Ozarks on Thursday. Heavy rainfall and mountain snow will return to southern California on Thursday. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Overcast

54°F

12°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 19 Nov 11:20 PM PST
Extended Forecast for

Napa CA

  • Tonight

    Tonight: Rain. Patchy fog between midnight and 1am. Low around 48. Calm wind becoming southeast around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 48 °F

    Rain and
    Patchy Fog

  • Thursday

    Thursday: A 50 percent chance of rain. Partly sunny, with a high near 57. West northwest wind 3 to 8 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 57 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 42. North wind 7 to 9 mph.

    Low: 42 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 62. Light north northwest wind becoming north 5 to 10 mph in the morning.

    High: 62 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 43. North northwest wind 5 to 9 mph becoming calm after midnight.

    Low: 43 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 11pm. Otherwise, mostly clear, with a low around 43.

    Low: 43 °F

    Patchy Fog

  • Sunday

    Sunday: Areas of fog before 10am. Otherwise, sunny, with a high near 62.

    High: 62 °F

    Areas Fog
    then Sunny

  • Sunday Night

    Sunday Night: Patchy fog after 9pm. Otherwise, mostly clear, with a low around 43.

    Low: 43 °F

    Patchy Fog

Detailed Forecast

Tonight
Rain. Patchy fog between midnight and 1am. Low around 48. Calm wind becoming southeast around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
A 50 percent chance of rain. Partly sunny, with a high near 57. West northwest wind 3 to 8 mph. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Mostly clear, with a low around 42. North wind 7 to 9 mph.
Friday
Sunny, with a high near 62. Light north northwest wind becoming north 5 to 10 mph in the morning.
Friday Night
Mostly clear, with a low around 43. North northwest wind 5 to 9 mph becoming calm after midnight.
Saturday
Sunny, with a high near 62.
Saturday Night
Patchy fog after 11pm. Otherwise, mostly clear, with a low around 43.
Sunday
Areas of fog before 10am. Otherwise, sunny, with a high near 62.
Sunday Night
Patchy fog after 9pm. Otherwise, mostly clear, with a low around 43.
Monday
Areas of fog before 10am. Otherwise, mostly sunny, with a high near 62.
Monday Night
Patchy fog. Otherwise, partly cloudy, with a low around 44.
Tuesday
Patchy fog. Otherwise, mostly sunny, with a high near 62.
Tuesday Night
Partly cloudy, with a low around 43.
Wednesday
Mostly sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Napa CA
 38.29°N 122.31°W (Elev. 190 ft)
Last Update:
12:26 pm PST Nov 19, 2025
Forecast Valid:
11pm PST Nov 19, 2025-6pm PST Nov 26, 2025
 
Forecast Discussion
 
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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