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

Unsettled Weather in the Eastern U.S. through Memorial Day

Showers and thunderstorms are expected from Texas to the Northeast through Tuesday. Heavy rain will create mainly localized areas of flash flooding across the central Gulf Coast into the Appalachians. Elevated to Critical fire weather conditions due to gusty winds and low humidity are expected through Tuesday across Oregon and Nevada. Showers and thunderstorms will develop over the Northwest. 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: Mostly cloudy, with a steady temperature around 53. West wind around 18 mph, with gusts as high as 40 mph.

    Low: 53 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 56. West northwest wind 13 to 20 mph, with gusts as high as 39 mph.

    High: 56 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 45. West wind 10 to 14 mph, with gusts as high as 29 mph.

    Low: 45 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 60. West wind 7 to 11 mph, with gusts as high as 22 mph.

    High: 60 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 50. Southwest wind 11 to 13 mph, with gusts as high as 24 mph.

    Low: 50 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of rain before 11am. Mostly sunny, with a high near 60.

    High: 60 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

  • Friday Night

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

    Low: 50 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 53. West wind around 18 mph, with gusts as high as 40 mph.
Tuesday
Mostly sunny, with a high near 56. West northwest wind 13 to 20 mph, with gusts as high as 39 mph.
Tuesday Night
Partly cloudy, with a low around 45. West wind 10 to 14 mph, with gusts as high as 29 mph.
Wednesday
Mostly sunny, with a high near 60. West wind 7 to 11 mph, with gusts as high as 22 mph.
Wednesday Night
Partly cloudy, with a low around 50. Southwest wind 11 to 13 mph, with gusts as high as 24 mph.
Thursday
A 20 percent chance of rain before 11am. Mostly sunny, with a high near 60.
Thursday Night
Partly cloudy, with a low around 51.
Friday
Mostly sunny, with a high near 59.
Friday Night
Mostly clear, with a low around 50.
Saturday
Sunny, with a high near 63.
Saturday Night
Clear, with a low around 46.
Sunday
Sunny, with a high near 69.
Sunday Night
Mostly clear, with a low around 52.
Monday
Sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Clayton CA
 37.87°N 121.92°W (Elev. 2818 ft)
Last Update:
2:16 am PDT May 26, 2026
Forecast Valid:
3am PDT May 26, 2026-6pm PDT Jun 1, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation