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

Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest

Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

49°F

9°C

Humidity 28%
Wind Speed WSW 6 MPH
Barometer NA
Dewpoint 17°F (-8°C)
Visibility NA
Wind Chill46°F (8°C)
Last update 15 Apr 01:30 AM PDT
Extended Forecast for

4 Miles ENE Danville CA

  • Overnight

    Overnight: Partly cloudy, with a low around 42. South southwest wind around 7 mph.

    Low: 42 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 66. West southwest wind 6 to 13 mph, with gusts as high as 24 mph.

    High: 66 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 41. West southwest wind 6 to 13 mph, with gusts as high as 26 mph.

    Low: 41 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 66. North wind 9 to 18 mph, with gusts as high as 32 mph.

    High: 66 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 43. North northwest wind 8 to 13 mph, with gusts as high as 28 mph.

    Low: 43 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 47.

    Low: 47 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 42. South southwest wind around 7 mph.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 66. West southwest wind 6 to 13 mph, with gusts as high as 24 mph.
Wednesday Night
Partly cloudy, with a low around 41. West southwest wind 6 to 13 mph, with gusts as high as 26 mph.
Thursday
Sunny, with a high near 66. North wind 9 to 18 mph, with gusts as high as 32 mph.
Thursday Night
Clear, with a low around 43. North northwest wind 8 to 13 mph, with gusts as high as 28 mph.
Friday
Sunny, with a high near 72.
Friday Night
Mostly clear, with a low around 42.
Saturday
Mostly sunny, with a high near 74.
Saturday Night
Mostly cloudy, with a low around 47.
Sunday
A chance of rain, mainly after 11am. Partly sunny, with a high near 71.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 46.
Monday
A chance of rain. Partly sunny, with a high near 66.
Monday Night
A chance of rain. Mostly cloudy, with a low around 46.
Tuesday
A chance of rain. Partly sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Danville CA
 37.85°N 121.94°W (Elev. 1362 ft)
Last Update:
1:26 am PDT Apr 15, 2026
Forecast Valid:
1am PDT Apr 15, 2026-6pm PDT Apr 21, 2026
 
Forecast Discussion
 
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