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Heavy Rain in the Southern Appalachians; Fire Weather and Heat in the West; Monitoring Tropical Storm Erin

Heavy to excessive rainfall over the southern Appalachians may bring areas of flooding today. Gusty winds and low relative humidity will bring critical fire weather conditions to parts of the Great Basin and northern Rockies today and Thursday. Hot to extremely hot temperatures are in place through today across parts of the western U.S. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Overcast

59°F

15°C

Humidity 87%
Wind Speed W 11 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 13 Aug 08:05 AM PDT
Extended Forecast for

3 Miles NNW Vallejo CA

  • Today

    Today: Mostly cloudy through mid morning, then gradual clearing, with a high near 74. Southwest wind 10 to 16 mph, with gusts as high as 20 mph.

    High: 74 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 57. West southwest wind 9 to 15 mph, with gusts as high as 18 mph.

    Low: 57 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Cloudy through mid morning, then gradual clearing, with a high near 76. Southwest wind 7 to 10 mph.

    High: 76 °F

    Becoming
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 58. Southwest wind 6 to 11 mph.

    Low: 58 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 82. Southwest wind 5 to 15 mph, with gusts as high as 18 mph.

    High: 82 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy through mid morning, then gradual clearing, with a high near 74. Southwest wind 10 to 16 mph, with gusts as high as 20 mph.
Tonight
Increasing clouds, with a low around 57. West southwest wind 9 to 15 mph, with gusts as high as 18 mph.
Thursday
Cloudy through mid morning, then gradual clearing, with a high near 76. Southwest wind 7 to 10 mph.
Thursday Night
Mostly clear, with a low around 58. Southwest wind 6 to 11 mph.
Friday
Sunny, with a high near 82. Southwest wind 5 to 15 mph, with gusts as high as 18 mph.
Friday Night
Mostly clear, with a low around 60.
Saturday
Sunny, with a high near 78.
Saturday Night
Partly cloudy, with a low around 60.
Sunday
Mostly sunny, with a high near 74.
Sunday Night
Mostly clear, with a low around 57.
Monday
Mostly sunny, with a high near 75.
Monday Night
Mostly clear, with a low around 58.
Tuesday
Sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Vallejo CA
 38.18°N 122.26°W (Elev. 56 ft)
Last Update:
5:12 am PDT Aug 13, 2025
Forecast Valid:
8am PDT Aug 13, 2025-6pm PDT Aug 19, 2025
 
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