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

Tracking Weekend Storm Impacts

A storm and trailing cold front will continue to slowly move through the Gulf Coast and Southeast U.S. through this weekend with widespread rain showers and isolated thunderstorms. A fast-moving clipper storm may bring several inches of snow to the north-central Plains, Midwest, eastern Great Lakes, and Northeast regions this weekend. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

56°F

13°C

Humidity 48%
Wind Speed W 6 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Last update 06 Dec 02:05 PM PST
Extended Forecast for

2 Miles SSW Clayton CA

  • This Afternoon

    This Afternoon: Sunny, with a steady temperature around 52. North wind 3 to 5 mph.

    High: 52 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 56. Light and variable wind.

    High: 56 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 44. Calm wind becoming east around 5 mph after midnight.

    Low: 44 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 57. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 57 °F

    Mostly Sunny

  • Monday Night

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

    Low: 45 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 57.

    High: 57 °F

    Mostly Sunny

  • Tuesday Night

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

    Low: 47 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a steady temperature around 52. North wind 3 to 5 mph.
Tonight
Partly cloudy, with a low around 44. Calm wind.
Sunday
Mostly sunny, with a high near 56. Light and variable wind.
Sunday Night
Partly cloudy, with a low around 44. Calm wind becoming east around 5 mph after midnight.
Monday
Mostly sunny, with a high near 57. Calm wind becoming north northwest around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 45.
Tuesday
Mostly sunny, with a high near 57.
Tuesday Night
Partly cloudy, with a low around 47.
Wednesday
Mostly sunny, with a high near 60.
Wednesday Night
Mostly clear, with a low around 47.
Thursday
Mostly sunny, with a high near 60.
Thursday Night
Mostly clear, with a low around 46.
Friday
Mostly sunny, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Clayton CA
 37.91°N 121.96°W (Elev. 1299 ft)
Last Update:
12:26 pm PST Dec 6, 2025
Forecast Valid:
2pm PST Dec 6, 2025-6pm PST Dec 12, 2025
 
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