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

Rain Providing Some Relief to Drought-Stricken Southern U.S.

A storm tracking across the southern U.S. will continue to bring areas of heavy thunderstorms with risks for severe weather and excessive rainfall from Texas to Florida through this weekend. While much of this rainfall will be beneficial to the drought, excessive rainfall may bring areas of flash and urban flooding. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

56°F

13°C

Humidity 37%
Wind Speed S 9 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 02 May 01:10 PM PDT
Extended Forecast for

5 Miles SSE Clayton CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 48. Southwest wind around 14 mph, with gusts as high as 26 mph.

    Low: 48 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a steady temperature around 51. Southwest wind around 16 mph, with gusts as high as 29 mph.

    High: 51 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 46. West southwest wind 15 to 17 mph, with gusts as high as 33 mph.

    Low: 46 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly cloudy, with a high near 52. West wind 11 to 14 mph, with gusts as high as 25 mph.

    High: 52 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A 30 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 47. West southwest wind 11 to 14 mph, with gusts as high as 28 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 47 °F

    Chance Rain

  • Tuesday

    Tuesday: Partly sunny, with a high near 56.

    High: 56 °F

    Partly Sunny

  • Tuesday Night

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

    Low: 49 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

  • Wednesday Night

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

    Low: 50 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 48. Southwest wind around 14 mph, with gusts as high as 26 mph.
Sunday
Mostly cloudy, then gradually becoming sunny, with a steady temperature around 51. Southwest wind around 16 mph, with gusts as high as 29 mph.
Sunday Night
Increasing clouds, with a low around 46. West southwest wind 15 to 17 mph, with gusts as high as 33 mph.
Monday
Mostly cloudy, with a high near 52. West wind 11 to 14 mph, with gusts as high as 25 mph.
Monday Night
A 30 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 47. West southwest wind 11 to 14 mph, with gusts as high as 28 mph. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Partly sunny, with a high near 56.
Tuesday Night
Partly cloudy, with a low around 49.
Wednesday
Mostly sunny, with a high near 63.
Wednesday Night
Mostly clear, with a low around 50.
Thursday
Sunny, with a high near 68.
Thursday Night
Mostly clear, with a low around 50.
Friday
Mostly sunny, with a high near 68.
Friday Night
Mostly clear, with a low around 51.
Saturday
Sunny, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Clayton CA
 37.87°N 121.92°W (Elev. 2818 ft)
Last Update:
1:51 pm PDT May 2, 2026
Forecast Valid:
6pm PDT May 2, 2026-6pm PDT May 9, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation