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

Arctic Air for the Northeast and Mid-Atlantic; Increase Moisture for Pacific Northwest; Active Pattern for Hawaii

An arctic cold front will impact the Great Lakes, Northeast and mid-Atlantic. Snow showers and squalls will accompany this system with increasing winds and falling temperatures. Damaging wind gusts may result in tree damage and power outages. Meanwhile, moisture returns for the Pacific Northwest and Hawaii this weekend with both coverage and intensity of rainfall and higher elevation snows. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

57°F

14°C

Humidity 34%
Wind Speed WNW 4 MPH
Barometer NA
Dewpoint 29°F (-2°C)
Visibility NA
Last update 07 Feb 09:40 AM PST
Extended Forecast for

3 Miles S Clayton CA

  • Today

    Today: Sunny, with a high near 62. West northwest wind 5 to 7 mph.

    High: 62 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 49. Southwest wind around 7 mph.

    Low: 49 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 62. West wind 6 to 9 mph.

    High: 62 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 51. West wind 8 to 10 mph, with gusts as high as 18 mph.

    Low: 51 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 60. North wind 7 to 9 mph, with gusts as high as 18 mph.

    High: 60 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A 20 percent chance of rain after 10pm. Mostly cloudy, with a low around 48.

    Low: 48 °F

    Slight Chance
    Rain

  • Tuesday

    Tuesday: A 30 percent chance of rain, mainly after 10am. Partly sunny, with a high near 53.

    High: 53 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A chance of rain. Mostly cloudy, with a low around 45.

    Low: 45 °F

    Chance Rain

  • Wednesday

    Wednesday: A slight chance of rain. Partly sunny, with a high near 55.

    High: 55 °F

    Slight Chance
    Rain

Detailed Forecast

Today
Sunny, with a high near 62. West northwest wind 5 to 7 mph.
Tonight
Mostly clear, with a low around 49. Southwest wind around 7 mph.
Sunday
Mostly sunny, with a high near 62. West wind 6 to 9 mph.
Sunday Night
Mostly cloudy, with a low around 51. West wind 8 to 10 mph, with gusts as high as 18 mph.
Monday
Mostly cloudy, with a high near 60. North wind 7 to 9 mph, with gusts as high as 18 mph.
Monday Night
A 20 percent chance of rain after 10pm. Mostly cloudy, with a low around 48.
Tuesday
A 30 percent chance of rain, mainly after 10am. Partly sunny, with a high near 53.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 45.
Wednesday
A slight chance of rain. Partly sunny, with a high near 55.
Wednesday Night
Mostly clear, with a low around 43.
Thursday
Sunny, with a high near 58.
Thursday Night
Partly cloudy, with a low around 44.
Friday
Partly sunny, with a high near 56.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Clayton CA
 37.9°N 121.92°W (Elev. 1900 ft)
Last Update:
1:23 am PST Feb 7, 2026
Forecast Valid:
9am PST Feb 7, 2026-6pm PST Feb 13, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation