Significant Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold Temperatures Expands Across the East

A significant, long-duration winter storm will bring widespread heavy snow, sleet, and freezing rain from the Southern Rockies to New England through Monday. Widespread travel disruptions, prolonged power outages, and vast tree damage is likely. Frigid temperatures, gusty winds, and dangerous wind chills will expand from the north-central US to the Southern Plains, MS Valley, and Midwest. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

39°F

4°C

Humidity 66%
Wind Speed N 22 MPH
Barometer NA
Dewpoint 29°F (-2°C)
Visibility NA
Wind Chill29°F (-2°C)
Last update 24 Jan 04:05 AM PST
Extended Forecast for

3 Miles S Clayton CA

  • Today

    Today: Sunny, with a high near 53. North northeast wind 9 to 14 mph, with gusts as high as 29 mph.

    High: 53 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 39. Northeast wind 7 to 9 mph, with gusts as high as 23 mph.

    Low: 39 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly cloudy, with a high near 52. East northeast wind 12 to 17 mph decreasing to 5 to 10 mph in the morning. Winds could gust as high as 24 mph.

    High: 52 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 41. East northeast wind around 6 mph.

    Low: 41 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 57. East northeast wind around 7 mph.

    High: 57 °F

    Mostly Sunny

  • Monday Night

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

    Low: 41 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 56.

    High: 56 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain, mainly before 4pm.  Partly sunny, with a high near 53.

    High: 53 °F

    Chance Rain

Detailed Forecast

Today
Sunny, with a high near 53. North northeast wind 9 to 14 mph, with gusts as high as 29 mph.
Tonight
Increasing clouds, with a low around 39. Northeast wind 7 to 9 mph, with gusts as high as 23 mph.
Sunday
Mostly cloudy, with a high near 52. East northeast wind 12 to 17 mph decreasing to 5 to 10 mph in the morning. Winds could gust as high as 24 mph.
Sunday Night
Mostly cloudy, with a low around 41. East northeast wind around 6 mph.
Monday
Mostly sunny, with a high near 57. East northeast wind around 7 mph.
Monday Night
Mostly clear, with a low around 41.
Tuesday
Mostly sunny, with a high near 56.
Tuesday Night
Mostly cloudy, with a low around 45.
Wednesday
A chance of rain, mainly before 4pm. Partly sunny, with a high near 53.
Wednesday Night
A slight chance of rain before 10pm. Mostly cloudy, with a low around 44.
Thursday
Mostly sunny, with a high near 57.
Thursday Night
Partly cloudy, with a low around 45.
Friday
Partly sunny, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Clayton CA
 37.9°N 121.92°W (Elev. 1900 ft)
12:26 am PST Jan 24, 2026
4am PST Jan 24, 2026-6pm PST Jan 30, 2026
 
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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