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

Heavy Rainfall in the Southern Plains and Mississippi Valley; Thunderstorms in Eastern Colorado on Thursday

A multiple day heavy rainfall event will begin to set up from the Southern Plains into the Mississippi Valley Thursday, peaking in intensity over the holiday weekend. Widely scattered thunderstorms are expected to develop across eastern Colorado Thursday afternoon and evening. Large hail will be the primary hazard. 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

  • Today

    Today: Sunny, with a high near 77. West wind 6 to 13 mph, with gusts as high as 23 mph.

    High: 77 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 56. West wind around 11 mph, with gusts as high as 23 mph.

    Low: 56 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 71. West southwest wind 9 to 13 mph, with gusts as high as 24 mph.

    High: 71 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 54. West southwest wind 11 to 14 mph, with gusts as high as 25 mph.

    Low: 54 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 67. West southwest wind 10 to 14 mph, with gusts as high as 24 mph.

    High: 67 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Memorial Day

    Memorial Day: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 77. West wind 6 to 13 mph, with gusts as high as 23 mph.
Tonight
Clear, with a low around 56. West wind around 11 mph, with gusts as high as 23 mph.
Friday
Sunny, with a high near 71. West southwest wind 9 to 13 mph, with gusts as high as 24 mph.
Friday Night
Mostly clear, with a low around 54. West southwest wind 11 to 14 mph, with gusts as high as 25 mph.
Saturday
Sunny, with a high near 67. West southwest wind 10 to 14 mph, with gusts as high as 24 mph.
Saturday Night
Mostly clear, with a low around 52.
Sunday
Sunny, with a high near 62.
Sunday Night
Mostly clear, with a low around 49.
Memorial Day
Mostly sunny, with a high near 68.
Monday Night
Partly cloudy, with a low around 50.
Tuesday
Mostly sunny, with a high near 68.
Tuesday Night
Mostly clear, with a low around 49.
Wednesday
Sunny, with a high near 72.
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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:
1:25 am PDT May 21, 2026
Forecast Valid:
6am PDT May 21, 2026-6pm PDT May 27, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation