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Tracking Winter Weather and Frigid Temperatures Through This Weekend

A clipper storm will move across the Great Lakes through this weekend with periods of light snow, gusty winds, and lake effect snow bands which could make for hazardous travel at times. A frigid airmass will spread eastward behind this storm into the Midwest and Eastern U.S. through the weekend. 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 25%
Wind Speed N 7 MPH
Barometer NA
Dewpoint 22°F (-6°C)
Visibility NA
Last update 16 Jan 10:40 AM PST
Extended Forecast for

4 Miles SSE Clayton CA

  • Today

    Today: Sunny, with a high near 60. Northeast wind around 8 mph.

    High: 60 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 48. Northeast wind around 7 mph.

    Low: 48 °F

    Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 58. Northeast wind around 8 mph.

    High: 58 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 44. East northeast wind around 6 mph.

    Low: 44 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 57. Northeast wind around 7 mph.

    High: 57 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 60. Northeast wind around 8 mph.
Tonight
Clear, with a low around 48. Northeast wind around 7 mph.
Saturday
Mostly sunny, with a high near 58. Northeast wind around 8 mph.
Saturday Night
Partly cloudy, with a low around 44. East northeast wind around 6 mph.
Sunday
Mostly sunny, with a high near 57. Northeast wind around 7 mph.
Sunday Night
Mostly clear, with a low around 42.
M.L.King Day
Sunny, with a high near 56.
Monday Night
Mostly clear, with a low around 42.
Tuesday
Mostly sunny, with a high near 55.
Tuesday Night
Partly cloudy, with a low around 44.
Wednesday
Mostly sunny, with a high near 54.
Wednesday Night
Partly cloudy, with a low around 44.
Thursday
Mostly sunny, with a high near 52.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Clayton CA
 37.87°N 121.92°W (Elev. 2818 ft)
Last Update:
12:26 am PST Jan 16, 2026
Forecast Valid:
10am PST Jan 16, 2026-6pm PST Jan 22, 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