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

Super Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, and thunderstorms to the Marianas Islands into Wednesday. Tropical Storm conditions are likely over Guam. Severe thunderstorms and heavy rain are likely across the Upper Mississippi Valley and Great Lakes region with potential for large to very large hail, damaging wind, and tornadoes through Tuesday. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

40°F

4°C

Humidity 98%
Wind Speed NW 3 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Last update 13 Apr 11:50 AM PDT
Extended Forecast for

7 Miles ENE Danville CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 57. Northwest wind 8 to 10 mph, with gusts as high as 20 mph.

    High: 57 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 45. West wind around 11 mph, with gusts as high as 20 mph.

    Low: 45 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Partly sunny, then gradually becoming sunny, with a high near 57. Southwest wind 9 to 14 mph, with gusts as high as 24 mph.

    High: 57 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 46. Southwest wind around 14 mph, with gusts as high as 23 mph.

    Low: 46 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 59. West wind 11 to 15 mph, with gusts as high as 26 mph.

    High: 59 °F

    Mostly Sunny

  • Wednesday Night

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

    Low: 47 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 46.

    Low: 46 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 57. Northwest wind 8 to 10 mph, with gusts as high as 20 mph.
Tonight
Increasing clouds, with a low around 45. West wind around 11 mph, with gusts as high as 20 mph.
Tuesday
Partly sunny, then gradually becoming sunny, with a high near 57. Southwest wind 9 to 14 mph, with gusts as high as 24 mph.
Tuesday Night
Partly cloudy, with a low around 46. Southwest wind around 14 mph, with gusts as high as 23 mph.
Wednesday
Mostly sunny, with a high near 59. West wind 11 to 15 mph, with gusts as high as 26 mph.
Wednesday Night
Partly cloudy, with a low around 47.
Thursday
Sunny, with a high near 60.
Thursday Night
Clear, with a low around 46.
Friday
Sunny, with a high near 65.
Friday Night
Partly cloudy, with a low around 47.
Saturday
Mostly sunny, with a high near 68.
Saturday Night
Mostly cloudy, with a low around 49.
Sunday
A slight chance of showers. Mostly sunny, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles ENE Danville CA
 37.83°N 121.88°W (Elev. 1913 ft)
11:51 am PDT Apr 13, 2026
12pm PDT Apr 13, 2026-6pm PDT Apr 19, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database