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

Tracking Weekend Storm Impacts

A storm and trailing cold front will continue to slowly move through the Gulf Coast and Southeast U.S. through this weekend with widespread rain showers and isolated thunderstorms. A fast-moving clipper storm may bring several inches of snow to the north-central Plains, Midwest, eastern Great Lakes, and Northeast regions this weekend. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

Lat: 37.881699°NLon: 121.914173°WElev: 3904.0ft.

NA

55°F

13°C

Humidity 35%
Wind Speed N 10 MPH
Barometer NA
Dewpoint 28°F (-2°C)
Visibility NA
Last update 06 Dec 05:35 PM PST
Extended Forecast for

5 Miles SW Brentwood CA

  • Tonight

    Tonight: Partly cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Partly Cloudy

  • Sunday

    Sunday: Widespread dense fog, mainly before 9am. Otherwise, partly sunny, with a high near 53. Light and variable wind.

    High: 53 °F

    Dense Fog
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: Patchy fog after 2am. Otherwise, partly cloudy, with a low around 44. West wind 3 to 5 mph.

    Low: 44 °F

    Partly Cloudy
    then Patchy
    Fog

  • Monday

    Monday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 59. Light and variable wind.

    High: 59 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 45. Light west wind.

    Low: 45 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Patchy fog before 8am. Otherwise, partly sunny, with a high near 59.

    High: 59 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 43. Calm wind.
Sunday
Widespread dense fog, mainly before 9am. Otherwise, partly sunny, with a high near 53. Light and variable wind.
Sunday Night
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 44. West wind 3 to 5 mph.
Monday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 59. Light and variable wind.
Monday Night
Partly cloudy, with a low around 45. Light west wind.
Tuesday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 59.
Tuesday Night
Partly cloudy, with a low around 47.
Wednesday
Mostly sunny, with a high near 62.
Wednesday Night
Partly cloudy, with a low around 48.
Thursday
Mostly sunny, with a high near 62.
Thursday Night
Partly cloudy, with a low around 46.
Friday
Mostly sunny, with a high near 59.
Friday Night
Partly cloudy, with a low around 46.
Saturday
Mostly sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Brentwood CA
 37.88°N 121.75°W (Elev. 394 ft)
Last Update:
12:26 pm PST Dec 6, 2025
Forecast Valid:
5pm PST Dec 6, 2025-6pm PST Dec 13, 2025
 
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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