Severe Thunderstorms and Heavy Rainfall in the Ohio Valley and Great Lakes; Winter Weather in the Northern Tier

A slow moving front extending from the Great Lakes region into the Plains will bring snow, wintry mix, and ice accumulation north of the front from the Upper Midwest into New England, and severe weather and heavy rain south of the front. Scattered severe thunderstorms with damaging gusts, severe hail, and heavy rain are expected across parts of the Great Lakes/Midwest through tonight. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

46°F

8°C

Humidity 98%
Wind Speed SW 11 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Wind Chill41°F (5°C)
Last update 31 Mar 05:10 PM PDT
Extended Forecast for

2 Miles SSE Clayton CA

  • Tonight

    Tonight: A 20 percent chance of rain between 2am and 5am.  Mostly cloudy, with a low around 54. South southwest wind 7 to 9 mph, with gusts as high as 21 mph.

    Low: 54 °F

    Slight Chance
    Rain

  • Wednesday

    Wednesday: Rain likely, mainly after 1pm.  Mostly cloudy, with a high near 64. West southwest wind 9 to 17 mph, with gusts as high as 31 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 64 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: Rain.  Low around 46. West wind 13 to 16 mph, with gusts as high as 31 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 46 °F

    Rain

  • Thursday

    Thursday: Sunny, with a high near 65. West wind around 11 mph becoming north northwest in the afternoon. Winds could gust as high as 23 mph.

    High: 65 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 48. Northwest wind around 9 mph, with gusts as high as 18 mph.

    Low: 48 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

Detailed Forecast

Tonight
A 20 percent chance of rain between 2am and 5am. Mostly cloudy, with a low around 54. South southwest wind 7 to 9 mph, with gusts as high as 21 mph.
Wednesday
Rain likely, mainly after 1pm. Mostly cloudy, with a high near 64. West southwest wind 9 to 17 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain. Low around 46. West wind 13 to 16 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Sunny, with a high near 65. West wind around 11 mph becoming north northwest in the afternoon. Winds could gust as high as 23 mph.
Thursday Night
Clear, with a low around 48. Northwest wind around 9 mph, with gusts as high as 18 mph.
Friday
Sunny, with a high near 74.
Friday Night
Mostly clear, with a low around 51.
Saturday
Sunny, with a high near 80.
Saturday Night
Mostly clear, with a low around 54.
Sunday
Mostly sunny, with a high near 81.
Sunday Night
Partly cloudy, with a low around 55.
Monday
Mostly sunny, with a high near 76.
Monday Night
Mostly clear, with a low around 53.
Tuesday
Mostly sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Clayton CA
 37.92°N 121.93°W (Elev. 600 ft)
8:41 pm PDT Mar 31, 2026
8pm PDT Mar 31, 2026-6pm PDT Apr 7, 2026
 
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Additional Resources

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