Areas of Extreme Heat and Fire Weather in the Pacific Northwest; Heavy Rain in the West and South-central US

Extreme heat will continue across the Pacific Northwest into midweek before finally waning. Hot temperatures, dry, gusty conditions, and isolated dry thunderstorms will bring critical fire weather. Heavy rain and thunderstorms are expected across portions of the Southwest, the Sierras, and the central/southern Plains. A series of storms will bring heavy rain and strong winds to southern Alaska. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

64°F

18°C

Humidity 77%
Wind Speed SSW 11 MPH
Barometer 29.85 in (1010.84 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 25 Aug 08:20 PM PDT
Extended Forecast for

Napa CA

  • Tonight

    Tonight: Increasing clouds, with a low around 56. South southwest wind 6 to 9 mph.

    Low: 56 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Partly sunny, then gradually becoming sunny, with a high near 80. South southwest wind 5 to 11 mph.

    High: 80 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 56. West southwest wind 6 to 10 mph.

    Low: 56 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Partly sunny, then gradually becoming sunny, with a high near 79. Southwest wind 6 to 10 mph.

    High: 79 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 53. West southwest wind 6 to 11 mph.

    Low: 53 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 56. South southwest wind 6 to 9 mph.
Tuesday
Partly sunny, then gradually becoming sunny, with a high near 80. South southwest wind 5 to 11 mph.
Tuesday Night
Increasing clouds, with a low around 56. West southwest wind 6 to 10 mph.
Wednesday
Partly sunny, then gradually becoming sunny, with a high near 79. Southwest wind 6 to 10 mph.
Wednesday Night
Mostly clear, with a low around 53. West southwest wind 6 to 11 mph.
Thursday
Mostly sunny, with a high near 81.
Thursday Night
Mostly clear, with a low around 53.
Friday
Mostly sunny, with a high near 84.
Friday Night
Mostly clear, with a low around 55.
Saturday
Mostly sunny, with a high near 86.
Saturday Night
Partly cloudy, with a low around 56.
Sunday
Mostly sunny, with a high near 86.
Sunday Night
Mostly clear, with a low around 56.
Labor Day
Mostly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
Napa CA
 38.3°N 122.26°W (Elev. 82 ft)
3:18 pm PDT Aug 25, 2025
8pm PDT Aug 25, 2025-6pm PDT Sep 1, 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