Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Current conditions at

Fairfield / Travis Air Force Base (KSUU)

Lat: 38.26667°NLon: 121.95°WElev: 62.0ft.

Mostly Cloudy

95°F

35°C

Humidity 22%
Wind Speed SW 18 MPH
Barometer 29.87 in (1011.51 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 27 Aug 03:55 PM PDT
Extended Forecast for

Vallejo CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 61. Southwest wind 6 to 8 mph.

    Low: 61 °F

    Mostly Cloudy

  • Friday

    Friday: Cloudy, then gradually becoming mostly sunny, with a high near 75. Southwest wind 7 to 9 mph.

    High: 75 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Partly cloudy, with a low around 56. West southwest wind around 7 mph.

    Low: 56 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, then gradually becoming sunny, with a high near 75. Southwest wind 7 to 11 mph.

    High: 75 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 56. Southwest wind 6 to 11 mph, with gusts as high as 18 mph.

    Low: 56 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Sunday Night

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

    Low: 55 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 61. Southwest wind 6 to 8 mph.
Friday
Cloudy, then gradually becoming mostly sunny, with a high near 75. Southwest wind 7 to 9 mph.
Friday Night
Partly cloudy, with a low around 56. West southwest wind around 7 mph.
Saturday
Partly sunny, then gradually becoming sunny, with a high near 75. Southwest wind 7 to 11 mph.
Saturday Night
Mostly clear, with a low around 56. Southwest wind 6 to 11 mph, with gusts as high as 18 mph.
Sunday
Sunny, with a high near 73.
Sunday Night
Mostly clear, with a low around 55.
Monday
Mostly sunny, with a high near 70.
Monday Night
Partly cloudy, with a low around 55.
Tuesday
Mostly sunny, with a high near 71.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Mostly sunny, with a high near 74.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
A slight chance of rain. Mostly sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
Vallejo CA
 38.14°N 122.25°W (Elev. 75 ft)
2:00 pm PDT Aug 27, 2026
4pm PDT Aug 27, 2026-6pm PDT Sep 3, 2026
 
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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