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

Severe Weather for Northeast Southeastward into the Southern Plains; Flooding in the Upper Great Lakes

Severe thunderstorms are expected from the Northeast to Texas through the night and for the Central/Southern Plains on Friday. Considerable flooding impacts are ongoing in the Upper Great Lakes, and expected to continue through the weekend. Fire weather concerns persist in the Plains and the mid-Atlantic. There is late-season snow over the Northern/Central Rockies and the Northern Plains. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

45°F

7°C

Humidity 28%
Wind Speed NNW 24 MPH
Barometer NA
Dewpoint 14°F (-10°C)
Visibility NA
Wind Chill36°F (2°C)
Last update 16 Apr 10:25 PM PDT
Extended Forecast for

2 Miles SSE Clayton CA

  • Overnight

    Overnight: Clear, with a low around 46. North wind 11 to 14 mph, with gusts as high as 33 mph.

    Low: 46 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 71. Northeast wind 7 to 9 mph becoming north northwest in the afternoon. Winds could gust as high as 24 mph.

    High: 71 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 50. South southwest wind 5 to 7 mph.

    Low: 50 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 76. Calm wind becoming north northeast around 5 mph in the afternoon.

    High: 76 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 53. West southwest wind around 7 mph.

    Low: 53 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 73.

    High: 73 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of rain after 11pm. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Chance Rain

  • Monday

    Monday: Rain likely. Mostly cloudy, with a high near 66.

    High: 66 °F

    Rain Likely

  • Monday Night

    Monday Night: Rain likely, mainly before 11pm. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Rain Likely

Detailed Forecast

Overnight
Clear, with a low around 46. North wind 11 to 14 mph, with gusts as high as 33 mph.
Friday
Sunny, with a high near 71. Northeast wind 7 to 9 mph becoming north northwest in the afternoon. Winds could gust as high as 24 mph.
Friday Night
Partly cloudy, with a low around 50. South southwest wind 5 to 7 mph.
Saturday
Mostly sunny, with a high near 76. Calm wind becoming north northeast around 5 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 53. West southwest wind around 7 mph.
Sunday
Partly sunny, with a high near 73.
Sunday Night
A 30 percent chance of rain after 11pm. Mostly cloudy, with a low around 52.
Monday
Rain likely. Mostly cloudy, with a high near 66.
Monday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 52.
Tuesday
A chance of rain, then showers likely and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 61.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 50.
Wednesday
A slight chance of rain. Mostly sunny, with a high near 64.
Wednesday Night
Mostly clear, with a low around 49.
Thursday
Sunny, with a high near 70.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Clayton CA
 37.92°N 121.93°W (Elev. 600 ft)
Last Update:
11:26 pm PDT Apr 16, 2026
Forecast Valid:
12am PDT Apr 17, 2026-6pm PDT Apr 23, 2026
 
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Additional Resources

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Chance of Precipitation