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

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

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 92%
Wind Speed SSW 2 MPH
Barometer NA
Dewpoint 41°F (5°C)
Visibility NA
Last update 14 Apr 10:40 AM PDT
Extended Forecast for

7 Miles ENE Danville CA

  • Tonight

    Tonight: Increasing clouds, with a low around 44. Southwest wind 11 to 14 mph, with gusts as high as 24 mph.

    Low: 44 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 59. West southwest wind 13 to 16 mph, with gusts as high as 25 mph.

    High: 59 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 44. West southwest wind 15 to 18 mph, with gusts as high as 30 mph.

    Low: 44 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 60. Breezy, with a west wind 11 to 16 mph becoming north 17 to 22 mph in the morning. Winds could gust as high as 37 mph.

    High: 60 °F

    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Clear, with a low around 45. Northwest wind 13 to 18 mph, with gusts as high as 30 mph.

    Low: 45 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Saturday Night

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

    Low: 48 °F

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 44. Southwest wind 11 to 14 mph, with gusts as high as 24 mph.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 59. West southwest wind 13 to 16 mph, with gusts as high as 25 mph.
Wednesday Night
Partly cloudy, with a low around 44. West southwest wind 15 to 18 mph, with gusts as high as 30 mph.
Thursday
Sunny, with a high near 60. Breezy, with a west wind 11 to 16 mph becoming north 17 to 22 mph in the morning. Winds could gust as high as 37 mph.
Thursday Night
Clear, with a low around 45. Northwest wind 13 to 18 mph, with gusts as high as 30 mph.
Friday
Sunny, with a high near 64.
Friday Night
Mostly clear, with a low around 45.
Saturday
Sunny, with a high near 68.
Saturday Night
Partly cloudy, with a low around 48.
Sunday
A chance of rain, mainly after 11am. Partly sunny, with a high near 63.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 50.
Monday
A chance of rain. Partly sunny, with a high near 56.
Monday Night
A chance of rain. Partly cloudy, with a low around 47.
Tuesday
A slight chance of rain. Mostly sunny, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
7 Miles ENE Danville CA
 37.83°N 121.88°W (Elev. 1913 ft)
Last Update:
2:16 pm PDT Apr 14, 2026
Forecast Valid:
3pm PDT Apr 14, 2026-6pm PDT Apr 21, 2026
 
Forecast Discussion
 
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Additional Resources

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