Rare Southern U.S. Winter Storm; Dangerous Cold Weather For Much of the Eastern U.S.; Critical Fire Weather for Southern California

A rare winter storm impacting the Southern U.S. will move offshore Wednesday morning. Behind the storm, arctic air will continue encompassing the eastern two-thirds of the Nation with only a slow return to normal temperatures expected by the end of the week. Moderate to strong Santa Ana winds and low humidity will maintain Critical fire weather conditions in southern California into Thursday. Read More >

Current conditions at

Vallejo (CQ062)

Lat: 38.1025°NLon: 122.23806°WElev: 98ft.

NA

N/A

Humidity 86%
Wind Speed N 8 MPH
Barometer NA
Dewpoint N/A
Visibility NA
Last update 06 Oct 09:00 AM PDT
Extended Forecast for

3 Miles N Hercules CA

Frost Advisory January 22, 12:00am until January 22, 10:00am
Click here for hazard details and duration
Frost Advisory
  • Tonight

    Tonight: Mostly clear, with a low around 39. East southeast wind around 6 mph becoming calm  after midnight.

    Low: 39 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 63. Light and variable wind.

    High: 63 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 42. Calm wind becoming east northeast around 6 mph after midnight.

    Low: 42 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 63. East northeast wind around 9 mph.

    High: 63 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 42. Light northeast wind.

    Low: 42 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 10 percent chance of rain after 4am.  Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear
    then Slight
    Chance Rain

  • Saturday

    Saturday: A slight chance of rain before 10am.  Sunny, with a high near 57.

    High: 57 °F

    Slight Chance
    Rain then
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 39. East southeast wind around 6 mph becoming calm after midnight.
Wednesday
Sunny, with a high near 63. Light and variable wind.
Wednesday Night
Clear, with a low around 42. Calm wind becoming east northeast around 6 mph after midnight.
Thursday
Sunny, with a high near 63. East northeast wind around 9 mph.
Thursday Night
Partly cloudy, with a low around 42. Light northeast wind.
Friday
Mostly sunny, with a high near 61.
Friday Night
A 10 percent chance of rain after 4am. Mostly clear, with a low around 43.
Saturday
A slight chance of rain before 10am. Sunny, with a high near 57.
Saturday Night
Mostly clear, with a low around 41.
Sunday
Sunny, with a high near 58.
Sunday Night
Clear, with a low around 40.
Monday
Sunny, with a high near 60.
Monday Night
Clear, with a low around 39.
Tuesday
Sunny, with a high near 59.
Click Map For Forecast

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Hercules CA
 38.05°N 122.25°W (Elev. 56 ft)
12:26 pm PST Jan 21, 2025
9pm PST Jan 21, 2025-6pm PST Jan 28, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database