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

Severe Thunderstorms, Arctic Blast Set to Arrive on Thanksgiving; Dangerous Wind Chills, Lake Effect Snow

Strong to severe thunderstorms are possible across the Southeast. A significant arctic outbreak will arrive in the northern Plains on Thanksgiving and advance farther south and east on Friday into the weekend. Dangerous wind chill temperatures are expected with heavy lake effect snow downwind of the Great Lakes. Read More >

Hazardous Weather Conditions

Current conditions at

Mt. Diablo (SJS02)

Lat: 37.881698°NLon: 121.914155°WElev: 3849.0ft.

NA

38°F

3°C

Humidity 88%
Wind Speed N 10 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Wind Chill31°F (-1°C)
Last update 26 Nov 10:25 PM PST
Extended Forecast for

5 Miles SW Brentwood CA

Frost Advisory November 27, 10:00pm until November 28, 09:00am
Click here for hazard details and duration
Frost Advisory

  • Tonight

    Tonight: Partly cloudy, with a low around 43. Calm wind becoming northwest around 5 mph.

    Low: 43 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 57. North wind 3 to 6 mph.

    High: 57 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 40. Calm wind.

    Low: 40 °F

    Clear

  • Thanksgiving Day

    Thanksgiving Day: Sunny, with a high near 56. Light north northeast wind.

    High: 56 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 40. Calm wind.

    Low: 40 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 57.

    High: 57 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 43. Calm wind becoming northwest around 5 mph.
Wednesday
Sunny, with a high near 57. North wind 3 to 6 mph.
Wednesday Night
Clear, with a low around 40. Calm wind.
Thanksgiving Day
Sunny, with a high near 56. Light north northeast wind.
Thursday Night
Mostly clear, with a low around 40. Calm wind.
Friday
Sunny, with a high near 57.
Friday Night
Partly cloudy, with a low around 40.
Saturday
Mostly sunny, with a high near 57.
Saturday Night
Partly cloudy, with a low around 44.
Sunday
Mostly sunny, with a high near 60.
Sunday Night
Partly cloudy, with a low around 46.
Monday
Mostly sunny, with a high near 61.
Monday Night
Mostly clear, with a low around 45.
Tuesday
Sunny, with a high near 61.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Brentwood CA
 37.88°N 121.75°W (Elev. 394 ft)
Last Update:
1:24 pm PST Nov 26, 2024
Forecast Valid:
9pm PST Nov 26, 2024-6pm PST Dec 3, 2024
 
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