Heavy Rain in the Southern U.S.; Active Weather Continues in Alaska

A storm system will bring heavy rainfall, thunderstorms, and flooding threats to portions of the Southern Plains today, the Lower Mississippi Valley Saturday, and the Southeast into the Mid-Atlantic on Sunday. Another Bering system will impact the Alaskan West Coast and Central Interior through the weekend bringing moderate to heavy snow, high winds, and/or some blizzard conditions. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

38°F

3°C

Humidity 99%
Wind Speed S 19 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Wind Chill28°F (-2°C)
Last update 14 Feb 11:05 PM PST
Extended Forecast for

7 Miles SSW Brentwood CA

  • Tonight

    Tonight: A 20 percent chance of rain after midnight.  Mostly cloudy, with a low around 47. South southeast wind 7 to 11 mph.

    Low: 47 °F

    Slight Chance
    Rain

  • Sunday

    Sunday: Rain, mainly after 1pm.  High near 59. Southeast wind 10 to 20 mph, with gusts as high as 30 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 59 °F

    Chance Rain
    then Rain

  • Sunday Night

    Sunday Night: Rain.  Low around 48. Breezy, with a southeast wind 19 to 24 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 28 mph.  Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 48 °F

    Rain and
    Breezy

  • Washington's Birthday

    Washington's Birthday: Rain.  High near 48. East northeast wind 8 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.  Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.

    High: 48 °F

    Rain

  • Monday Night

    Monday Night: Rain.  Low around 44. Breezy, with a west southwest wind 18 to 22 mph, with gusts as high as 33 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 44 °F

    Rain and
    Breezy

  • Tuesday

    Tuesday: Rain.  High near 46. Breezy.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 46 °F

    Rain and
    Breezy

  • Tuesday Night

    Tuesday Night: Rain.  Low around 39. Chance of precipitation is 90%.

    Low: 39 °F

    Rain then
    Rain Likely

  • Wednesday

    Wednesday: Rain likely.  Mostly cloudy, with a high near 49.

    High: 49 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: Rain likely, mainly before 10pm.  Mostly cloudy, with a low around 39.

    Low: 39 °F

    Rain Likely

Detailed Forecast

Tonight
A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 47. South southeast wind 7 to 11 mph.
Sunday
Rain, mainly after 1pm. High near 59. Southeast wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Rain. Low around 48. Breezy, with a southeast wind 19 to 24 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Washington's Birthday
Rain. High near 48. East northeast wind 8 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
Monday Night
Rain. Low around 44. Breezy, with a west southwest wind 18 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
Rain. High near 46. Breezy. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Rain. Low around 39. Chance of precipitation is 90%.
Wednesday
Rain likely. Mostly cloudy, with a high near 49.
Wednesday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 39.
Thursday
A chance of rain. Partly sunny, with a high near 49.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 38.
Friday
A chance of rain. Partly sunny, with a high near 50.
Friday Night
A chance of rain. Mostly cloudy, with a low around 41.
Saturday
A chance of rain. Partly sunny, with a high near 53.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles SSW Brentwood CA
 37.83°N 121.74°W (Elev. 932 ft)
5:18 pm PST Feb 14, 2026
11pm PST Feb 14, 2026-6pm PST Feb 21, 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