Severe Thunderstorms and Heavy Rainfall Across the South; Heat Spreads Across the West and Southern Plains

A couple of frontal boundaries will move east and south from the Plains to the Gulf and Atlantic coastlines. These boundaries will focus showers and thunderstorms through the weekend, with scattered severe thunderstorms from the Southern Plains and across the Gulf Coast states. Locally heavy rainfall may also occur, which may be welcome news across drought areas. Meanwhile, heat spreads westward. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

62°F

17°C

Humidity 33%
Wind Speed NW 11 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 09 May 12:20 AM PDT
Extended Forecast for

2 Miles SSE Clayton CA

  • Overnight

    Overnight: Mostly clear, with a low around 53. Southwest wind around 9 mph.

    Low: 53 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 81. West southwest wind 7 to 11 mph, with gusts as high as 23 mph.

    High: 81 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 56. South southwest wind around 14 mph, with gusts as high as 29 mph.

    Low: 56 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 80. West southwest wind 9 to 13 mph, with gusts as high as 25 mph.

    High: 80 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 56. Southwest wind 7 to 11 mph, with gusts as high as 22 mph.

    Low: 56 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 53. Southwest wind around 9 mph.
Saturday
Sunny, with a high near 81. West southwest wind 7 to 11 mph, with gusts as high as 23 mph.
Saturday Night
Mostly clear, with a low around 56. South southwest wind around 14 mph, with gusts as high as 29 mph.
Sunday
Sunny, with a high near 80. West southwest wind 9 to 13 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 56. Southwest wind 7 to 11 mph, with gusts as high as 22 mph.
Monday
Sunny, with a high near 91.
Monday Night
Mostly clear, with a low around 60.
Tuesday
Sunny, with a high near 83.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
Sunny, with a high near 76.
Wednesday Night
Mostly clear, with a low around 55.
Thursday
A slight chance of rain. Sunny, with a high near 77.
Thursday Night
Mostly clear, with a low around 56.
Friday
Sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Clayton CA
 37.92°N 121.93°W (Elev. 600 ft)
1:46 am PDT May 9, 2026
3am PDT May 9, 2026-6pm PDT May 15, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database