Super Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather from the Southern Plains to the Great Lakes

Super Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, thunderstorms, and coastal impacts to the Marianas Islands into Wednesday. Typhoon conditions are likely over CNMI and tropical storm conditions over Guam. Severe thunderstorms and heavy rain are expected from the Southern Plains to the Great Lakes today. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

43°F

6°C

Humidity 83%
Wind Speed W 9 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Wind Chill38°F (3°C)
Last update 14 Apr 03:40 AM PDT
Extended Forecast for

7 Miles SSW Brentwood CA

  • Today

    Today: Sunny, with a high near 64. West southwest wind 6 to 10 mph, with gusts as high as 21 mph.

    High: 64 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 48. Southwest wind 7 to 10 mph, with gusts as high as 20 mph.

    Low: 48 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 65. West wind 7 to 13 mph, with gusts as high as 22 mph.

    High: 65 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 50. West southwest wind 10 to 15 mph, with gusts as high as 28 mph.

    Low: 50 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 64. West wind 9 to 15 mph becoming north northwest in the morning. Winds could gust as high as 28 mph.

    High: 64 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 48.

    Low: 48 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

  • Friday Night

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

    Low: 48 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 64. West southwest wind 6 to 10 mph, with gusts as high as 21 mph.
Tonight
Mostly clear, with a low around 48. Southwest wind 7 to 10 mph, with gusts as high as 20 mph.
Wednesday
Mostly sunny, with a high near 65. West wind 7 to 13 mph, with gusts as high as 22 mph.
Wednesday Night
Partly cloudy, with a low around 50. West southwest wind 10 to 15 mph, with gusts as high as 28 mph.
Thursday
Sunny, with a high near 64. West wind 9 to 15 mph becoming north northwest in the morning. Winds could gust as high as 28 mph.
Thursday Night
Clear, with a low around 48.
Friday
Sunny, with a high near 70.
Friday Night
Partly cloudy, with a low around 48.
Saturday
Mostly sunny, with a high near 72.
Saturday Night
Partly cloudy, with a low around 52.
Sunday
A slight chance of rain. Mostly sunny, with a high near 70.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 53.
Monday
A chance of rain. Partly sunny, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles SSW Brentwood CA
 37.83°N 121.74°W (Elev. 932 ft)
1:43 am PDT Apr 14, 2026
4am PDT Apr 14, 2026-6pm PDT Apr 20, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database