Back-to-Back Winter Storms Across the North-Central U.S.; Severe Weather Threat in the Midwest

A late-season winter storm continues to bring heavy snow, significant sleet, and disruptive icing to the Upper Midwest and western Great Lakes into the morning; and will be followed by another storm. Severe thunderstorms continue across the Midwest to the lower Great Lakes through tonight, before bringing a round of freezing rain and sleet Friday morning across northern New England. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

42°F

6°C

Humidity 50%
Wind Speed N 24 MPH
Barometer NA
Dewpoint 25°F (-4°C)
Visibility NA
Wind Chill32°F (0°C)
Last update 03 Apr 02:35 AM PDT
Extended Forecast for

4 Miles S Clayton CA

  • Overnight

    Overnight: Clear, with a low around 44. North wind around 15 mph, with gusts as high as 26 mph.

    Low: 44 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 61. North wind 11 to 20 mph, with gusts as high as 33 mph.

    High: 61 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 51. North northeast wind 5 to 9 mph becoming calm  after midnight.

    Low: 51 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 69. East northeast wind 5 to 10 mph, with gusts as high as 18 mph.

    High: 69 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 55. North wind around 6 mph becoming southwest after midnight.

    Low: 55 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Monday Night

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

    Low: 51 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 44. North wind around 15 mph, with gusts as high as 26 mph.
Friday
Sunny, with a high near 61. North wind 11 to 20 mph, with gusts as high as 33 mph.
Friday Night
Clear, with a low around 51. North northeast wind 5 to 9 mph becoming calm after midnight.
Saturday
Sunny, with a high near 69. East northeast wind 5 to 10 mph, with gusts as high as 18 mph.
Saturday Night
Mostly clear, with a low around 55. North wind around 6 mph becoming southwest after midnight.
Sunday
Sunny, with a high near 73.
Sunday Night
Mostly clear, with a low around 53.
Monday
Sunny, with a high near 67.
Monday Night
Mostly clear, with a low around 51.
Tuesday
Sunny, with a high near 65.
Tuesday Night
A slight chance of rain. Partly cloudy, with a low around 56.
Wednesday
A chance of rain. Partly sunny, with a high near 60.
Wednesday Night
A slight chance of rain. Partly cloudy, with a low around 50.
Thursday
Mostly sunny, with a high near 60.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Clayton CA
 37.87°N 121.92°W (Elev. 2818 ft)
1:25 am PDT Apr 3, 2026
3am PDT Apr 3, 2026-6pm PDT Apr 9, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database