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

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

42°F

6°C

Humidity 84%
Wind Speed W 7 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Wind Chill38°F (3°C)
Last update 13 Apr 10:20 PM PDT
Extended Forecast for

4 Miles S Clayton CA

  • Overnight

    Overnight: Partly cloudy, with a low around 45. West southwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 45 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 53. Southwest wind 10 to 14 mph, with gusts as high as 24 mph.

    High: 53 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 43. West southwest wind 11 to 14 mph, with gusts as high as 26 mph.

    Low: 43 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 55. West southwest wind 13 to 17 mph, with gusts as high as 26 mph.

    High: 55 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 46. West southwest wind 16 to 18 mph, with gusts as high as 36 mph.

    Low: 46 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 45.

    Low: 45 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 45. West southwest wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 53. Southwest wind 10 to 14 mph, with gusts as high as 24 mph.
Tuesday Night
Partly cloudy, with a low around 43. West southwest wind 11 to 14 mph, with gusts as high as 26 mph.
Wednesday
Partly sunny, with a high near 55. West southwest wind 13 to 17 mph, with gusts as high as 26 mph.
Wednesday Night
Partly cloudy, with a low around 46. West southwest wind 16 to 18 mph, with gusts as high as 36 mph.
Thursday
Sunny, with a high near 56.
Thursday Night
Clear, with a low around 45.
Friday
Sunny, with a high near 60.
Friday Night
Partly cloudy, with a low around 45.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
Partly cloudy, with a low around 49.
Sunday
A slight chance of rain. Mostly sunny, with a high near 59.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 49.
Monday
A chance of rain. Partly sunny, with a high near 54.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Clayton CA
 37.87°N 121.92°W (Elev. 2818 ft)
Last Update:
1:43 am PDT Apr 14, 2026
Forecast Valid:
2am PDT Apr 14, 2026-6pm PDT Apr 20, 2026
 
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Additional Resources

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Chance of Precipitation