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

Severe Weather and Flooding Threats for the Central U.S.; Fire Weather Concerns for the Western U.S.

Severe weather and flooding threats will continue for portions of the central U.S. Rounds of heavy rainfall may cause impactful flash flooding in parts of southern Kansas and Missouri. Hot and dry conditions will fuel fire weather concerns for the Intermountain West, and dry thunderstorms may spark additional wildfires. Dangerous heat will build across the southern U.S. Friday into the weekend. 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 93%
Wind Speed W 9 MPH
Barometer 29.92 in (1013.21 mb)
Dewpoint 54°F (12°C)
Visibility 7.00 mi
Last update 25 Jun 05:20 AM PDT
Extended Forecast for

5 Miles S Saint Helena CA

  • Today

    Today: Sunny, with a high near 79. Calm wind becoming west southwest 5 to 7 mph in the afternoon.

    High: 79 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 60. West wind 8 to 11 mph, with gusts as high as 22 mph.

    Low: 60 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 74. West southwest wind 8 to 13 mph, with gusts as high as 29 mph.

    High: 74 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 57. West southwest wind 14 to 17 mph, with gusts as high as 34 mph.

    Low: 57 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 71. West wind 5 to 9 mph, with gusts as high as 18 mph.

    High: 71 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 53.

    Low: 53 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 58.

    Low: 58 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 79. Calm wind becoming west southwest 5 to 7 mph in the afternoon.
Tonight
Partly cloudy, with a low around 60. West wind 8 to 11 mph, with gusts as high as 22 mph.
Friday
Sunny, with a high near 74. West southwest wind 8 to 13 mph, with gusts as high as 29 mph.
Friday Night
Mostly clear, with a low around 57. West southwest wind 14 to 17 mph, with gusts as high as 34 mph.
Saturday
Sunny, with a high near 71. West wind 5 to 9 mph, with gusts as high as 18 mph.
Saturday Night
Clear, with a low around 53.
Sunday
Sunny, with a high near 76.
Sunday Night
Clear, with a low around 58.
Monday
Sunny, with a high near 79.
Monday Night
Clear, with a low around 57.
Tuesday
Sunny, with a high near 77.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles S Saint Helena CA
 38.44°N 122.47°W (Elev. 1798 ft)
Last Update:
1:51 am PDT Jun 25, 2026
Forecast Valid:
5am PDT Jun 25, 2026-6pm PDT Jul 1, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation