Severe Thunderstorms in the Southern Plains; Heavy to Excessive Rainfall in South Central Texas

Widespread rain may produce flash flooding across the Southern Plains into the Ozarks today. Numerous instances of flash flooding are expected in south-central Texas, including the Hill Country. There will also be a risk of isolated severe thunderstorms across the southern Plains today, where an instance or two of severe wind, hail, or a brief tornado may occur. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Overcast

55°F

13°C

Humidity 83%
Wind Speed NNW 4 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 20 Nov 10:54 AM PST
Extended Forecast for

6 Miles SSW Lake Berryessa CA

  • Today

    Today: A 30 percent chance of rain.  Partly sunny, with a high near 53. West wind around 7 mph becoming northeast in the afternoon.  New precipitation amounts of less than a tenth of an inch possible.

    High: 53 °F

    Chance Rain

  • Tonight

    Tonight: Mostly clear, with a low around 44. North wind 7 to 16 mph, with gusts as high as 20 mph.

    Low: 44 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 59. North wind 16 to 18 mph, with gusts as high as 24 mph.

    High: 59 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 45. North wind 9 to 13 mph.

    Low: 45 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 60. North wind around 9 mph.

    High: 60 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 57.

    High: 57 °F

    Mostly Sunny

Detailed Forecast

Today
A 30 percent chance of rain. Partly sunny, with a high near 53. West wind around 7 mph becoming northeast in the afternoon. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Mostly clear, with a low around 44. North wind 7 to 16 mph, with gusts as high as 20 mph.
Friday
Sunny, with a high near 59. North wind 16 to 18 mph, with gusts as high as 24 mph.
Friday Night
Clear, with a low around 45. North wind 9 to 13 mph.
Saturday
Sunny, with a high near 60. North wind around 9 mph.
Saturday Night
Mostly clear, with a low around 43.
Sunday
Sunny, with a high near 57.
Sunday Night
Partly cloudy, with a low around 43.
Monday
Mostly sunny, with a high near 57.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
Mostly sunny, with a high near 59.
Tuesday Night
Partly cloudy, with a low around 43.
Wednesday
Mostly sunny, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SSW Lake Berryessa CA
 38.5°N 122.28°W (Elev. 1355 ft)
7:40 am PST Nov 20, 2025
11am PST Nov 20, 2025-6pm PST Nov 26, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database