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 16%
Wind Speed WNW 7 MPH
Barometer NA
Dewpoint 7°F (-14°C)
Visibility NA
Wind Chill47°F (8°C)
Last update 30 Nov 04:25 AM PST
Extended Forecast for

Clayton CA

  • Today

    Today: Partly sunny, with a high near 48. Calm wind becoming north around 6 mph in the morning.

    High: 48 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 40. Light and variable wind.

    Low: 40 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 53. Northeast wind around 7 mph.

    High: 53 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 57. Calm wind becoming north around 5 mph in the afternoon.

    High: 57 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

Detailed Forecast

Today
Partly sunny, with a high near 48. Calm wind becoming north around 6 mph in the morning.
Tonight
Partly cloudy, with a low around 40. Light and variable wind.
Monday
Sunny, with a high near 53. Northeast wind around 7 mph.
Monday Night
Partly cloudy, with a low around 43. Calm wind.
Tuesday
Sunny, with a high near 57. Calm wind becoming north around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 44.
Wednesday
Sunny, with a high near 58.
Wednesday Night
Mostly clear, with a low around 41.
Thursday
Sunny, with a high near 55.
Thursday Night
Mostly clear, with a low around 42.
Friday
Sunny, with a high near 56.
Friday Night
Mostly clear, with a low around 44.
Saturday
Sunny, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
Clayton CA
 37.91°N 121.96°W (Elev. 1299 ft)
12:26 am PST Nov 30, 2025
4am PST Nov 30, 2025-6pm PST Dec 6, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database