Active Spring Like Pattern Across the Country

A frontal boundary will slowly move eastward and clear most of the eastern seaboard by Sunday. Showers and thunderstorms, some severe, will accompany this front alongside the threat of heavy rainfall; These threats may linger along the Gulf Coast states into early next week. Meanwhile, record spring-like warmth is forecast, mainly east of the Mississippi River, this weekend into next week. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

50°F

10°C

Humidity 56%
Wind Speed N 19 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Wind Chill44°F (7°C)
Last update 07 Mar 12:25 PM PST
Extended Forecast for

Clayton CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 74. North northeast wind around 14 mph.

    High: 74 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 54. East northeast wind 6 to 14 mph, with gusts as high as 32 mph.

    Low: 54 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 76. Calm wind becoming north northwest 5 to 7 mph in the morning.

    High: 76 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 52. South wind 7 to 9 mph.

    Low: 52 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 70. North wind 7 to 9 mph.

    High: 70 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 74. North northeast wind around 14 mph.
Tonight
Clear, with a low around 54. East northeast wind 6 to 14 mph, with gusts as high as 32 mph.
Sunday
Sunny, with a high near 76. Calm wind becoming north northwest 5 to 7 mph in the morning.
Sunday Night
Mostly clear, with a low around 52. South wind 7 to 9 mph.
Monday
Sunny, with a high near 70. North wind 7 to 9 mph.
Monday Night
Partly cloudy, with a low around 47.
Tuesday
Mostly sunny, with a high near 68.
Tuesday Night
Partly cloudy, with a low around 47.
Wednesday
Sunny, with a high near 71.
Wednesday Night
Clear, with a low around 49.
Thursday
Sunny, with a high near 74.
Thursday Night
Mostly clear, with a low around 51.
Friday
Sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
Clayton CA
 37.91°N 121.96°W (Elev. 1299 ft)
1:50 pm PST Mar 7, 2026
2pm PST Mar 7, 2026-6pm PDT Mar 13, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database