Thunderstorms in the North Central U.S.; Dangerous Heat in Texas

There is a severe weather and isolated flooding threat from the Central to Northern Plains tonight into early Thursday. The severe weather threat will progress eastward to the Upper Mississippi Valley/Great Lakes into the Lower Ohio Valley Thursday. Major to extreme heat will continue to impact much of southern Texas into next week, where widespread record-breaking temperatures are possible. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

57°F

14°C

Humidity 82%
Wind Speed SSE 5 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 14 May 09:20 PM PDT
Extended Forecast for

4 Miles E Saint Helena CA

  • Tonight

    Tonight: Mostly clear, with a low around 49. North wind around 6 mph becoming calm  after midnight.

    Low: 49 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 79. Light and variable wind becoming west southwest 5 to 10 mph in the afternoon.

    High: 79 °F

    Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 52. West wind 5 to 7 mph becoming calm  in the evening.

    Low: 52 °F

    Increasing
    Clouds

  • Friday

    Friday: Sunny, with a high near 82. Calm wind becoming west southwest 5 to 9 mph in the afternoon.

    High: 82 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 52. West northwest wind 5 to 11 mph.

    Low: 52 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 56.

    Low: 56 °F

    Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 49. North wind around 6 mph becoming calm after midnight.
Thursday
Sunny, with a high near 79. Light and variable wind becoming west southwest 5 to 10 mph in the afternoon.
Thursday Night
Increasing clouds, with a low around 52. West wind 5 to 7 mph becoming calm in the evening.
Friday
Sunny, with a high near 82. Calm wind becoming west southwest 5 to 9 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 52. West northwest wind 5 to 11 mph.
Saturday
Mostly sunny, with a high near 73.
Saturday Night
Mostly clear, with a low around 50.
Sunday
Sunny, with a high near 78.
Sunday Night
Clear, with a low around 56.
Monday
Sunny, with a high near 88.
Monday Night
Clear, with a low around 57.
Tuesday
Sunny, with a high near 88.
Tuesday Night
Clear, with a low around 58.
Wednesday
Sunny, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Saint Helena CA
 38.5°N 122.4°W (Elev. 476 ft)
8:26 pm PDT May 14, 2025
9pm PDT May 14, 2025-6pm PDT May 21, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database