Heavy Rainfall on the Western Gulf Coast; Severe Thunderstorms in the Southern Plains Friday

A multi-day heavy rainfall event will continue over the western Gulf Coast through Monday. Slight Risks of excessive rainfall have been issued, and Flood Watches remain in effect through Monday evening. Scattered severe storms capable of producing large hail and damaging winds are possible across western portions of Texas and Oklahoma on Friday. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

N/A

Humidity 28%
Wind Speed NW 9 MPH
Barometer NA
Dewpoint N/A
Visibility NA
Last update 17 May 05:05 PM PDT
Extended Forecast for

4 Miles SSE Clayton CA

  • Overnight

    Overnight: Clear, with a low around 55. Southwest wind around 11 mph, with gusts as high as 20 mph.

    Low: 55 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 72. Southwest wind 8 to 14 mph, with gusts as high as 24 mph.

    High: 72 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 53. Southwest wind 11 to 14 mph, with gusts as high as 28 mph.

    Low: 53 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 66. West southwest wind 11 to 13 mph, with gusts as high as 24 mph.

    High: 66 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 52. West southwest wind around 14 mph, with gusts as high as 28 mph.

    Low: 52 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Memorial Day

    Memorial Day: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Monday Night

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

    Low: 49 °F

    Partly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 55. Southwest wind around 11 mph, with gusts as high as 20 mph.
Friday
Sunny, with a high near 72. Southwest wind 8 to 14 mph, with gusts as high as 24 mph.
Friday Night
Mostly clear, with a low around 53. Southwest wind 11 to 14 mph, with gusts as high as 28 mph.
Saturday
Sunny, with a high near 66. West southwest wind 11 to 13 mph, with gusts as high as 24 mph.
Saturday Night
Mostly clear, with a low around 52. West southwest wind around 14 mph, with gusts as high as 28 mph.
Sunday
Sunny, with a high near 63.
Sunday Night
Mostly clear, with a low around 50.
Memorial Day
Sunny, with a high near 58.
Monday Night
Partly cloudy, with a low around 49.
Tuesday
Sunny, with a high near 70.
Tuesday Night
Clear, with a low around 52.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Clear, with a low around 55.
Thursday
Sunny, with a high near 79.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Clayton CA
 37.87°N 121.92°W (Elev. 2818 ft)
1:26 am PDT May 22, 2026
3am PDT May 22, 2026-6pm PDT May 28, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database