Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

51°F

11°C

Humidity 28%
Wind Speed NNE 3 MPH
Barometer NA
Dewpoint 19°F (-7°C)
Visibility NA
Last update 17 Apr 08:05 PM PDT
Extended Forecast for

7 Miles SSW Brentwood CA

  • Today

    Today: Sunny, with a high near 76. Calm wind becoming east around 5 mph in the afternoon.

    High: 76 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 56. West northwest wind around 6 mph becoming southwest in the evening.

    Low: 56 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 74. West southwest wind 5 to 8 mph.

    High: 74 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 51. Southwest wind 6 to 11 mph, with gusts as high as 22 mph.

    Low: 51 °F

    Partly Cloudy

  • Monday

    Monday: A 30 percent chance of showers, mainly after 11am.  Mostly sunny, with a high near 72. Southwest wind 6 to 9 mph, with gusts as high as 18 mph.  New precipitation amounts of less than a tenth of an inch possible.

    High: 72 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Showers, mainly after 11pm.  Low around 55. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 55 °F

    Showers

  • Tuesday

    Tuesday: Showers, with thunderstorms also possible after 11am.  High near 61. Chance of precipitation is 90%.

    High: 61 °F

    Showers

  • Tuesday Night

    Tuesday Night: Rain likely, mainly before 11pm.  Mostly cloudy, with a low around 51.

    Low: 51 °F

    Rain Likely

  • Wednesday

    Wednesday: A chance of rain.  Mostly sunny, with a high near 62.

    High: 62 °F

    Chance Rain

Detailed Forecast

Today
Sunny, with a high near 76. Calm wind becoming east around 5 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 56. West northwest wind around 6 mph becoming southwest in the evening.
Sunday
Partly sunny, with a high near 74. West southwest wind 5 to 8 mph.
Sunday Night
Partly cloudy, with a low around 51. Southwest wind 6 to 11 mph, with gusts as high as 22 mph.
Monday
A 30 percent chance of showers, mainly after 11am. Mostly sunny, with a high near 72. Southwest wind 6 to 9 mph, with gusts as high as 18 mph. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Showers, mainly after 11pm. Low around 55. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
Showers, with thunderstorms also possible after 11am. High near 61. Chance of precipitation is 90%.
Tuesday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 51.
Wednesday
A chance of rain. Mostly sunny, with a high near 62.
Wednesday Night
Mostly clear, with a low around 49.
Thursday
Mostly sunny, with a high near 67.
Thursday Night
Mostly clear, with a low around 49.
Friday
Sunny, with a high near 69.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles SSW Brentwood CA
 37.83°N 121.74°W (Elev. 932 ft)
1:41 am PDT Apr 18, 2026
5am PDT Apr 18, 2026-6pm PDT Apr 24, 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