Severe Thunderstorms for the Center of the Nation; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

A round of severe thunderstorms are forecast across areas of the Southern Plains, Mississippi Valley and Great Lakes this afternoon and tonight; The threat for flash flooding will also accompany these storms. The rainfall for the Great Lakes region could prolong the ongoing flooding. Where the rain is needed, the Southern High Plains, critical fire weather concerns through today. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

43°F

6°C

Humidity 33%
Wind Speed NNW 13 MPH
Barometer NA
Dewpoint 16°F (-9°C)
Visibility NA
Wind Chill36°F (2°C)
Last update 17 Apr 10:55 AM PDT
Extended Forecast for

4 Miles SSE Clayton CA

  • Today

    Today: Sunny, with a high near 58. North northwest wind 9 to 14 mph, with gusts as high as 25 mph.

    High: 58 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 48. West wind 6 to 9 mph.

    Low: 48 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 65. East northeast wind around 6 mph becoming southwest in the afternoon.

    High: 65 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 52. Southwest wind 7 to 9 mph.

    Low: 52 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 63. West southwest wind 9 to 13 mph, with gusts as high as 23 mph.

    High: 63 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Monday

    Monday: A 50 percent chance of showers.  Partly sunny, with a high near 60.

    High: 60 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Rain likely.  Mostly cloudy, with a low around 48.

    Low: 48 °F

    Rain Likely

  • Tuesday

    Tuesday: Rain before 11am, then showers and possibly a thunderstorm after 11am.  Mostly cloudy, with a high near 52.

    High: 52 °F

    Showers

Detailed Forecast

Today
Sunny, with a high near 58. North northwest wind 9 to 14 mph, with gusts as high as 25 mph.
Tonight
Partly cloudy, with a low around 48. West wind 6 to 9 mph.
Saturday
Mostly sunny, with a high near 65. East northeast wind around 6 mph becoming southwest in the afternoon.
Saturday Night
Mostly cloudy, with a low around 52. Southwest wind 7 to 9 mph.
Sunday
Partly sunny, with a high near 63. West southwest wind 9 to 13 mph, with gusts as high as 23 mph.
Sunday Night
Partly cloudy, with a low around 49.
Monday
A 50 percent chance of showers. Partly sunny, with a high near 60.
Monday Night
Rain likely. Mostly cloudy, with a low around 48.
Tuesday
Rain before 11am, then showers and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 52.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 47.
Wednesday
A chance of rain. Mostly sunny, with a high near 54.
Wednesday Night
Mostly clear, with a low around 47.
Thursday
Sunny, with a high near 57.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Clayton CA
 37.87°N 121.92°W (Elev. 2818 ft)
11:26 am PDT Apr 17, 2026
11am PDT Apr 17, 2026-6pm PDT Apr 23, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database