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

53°F

12°C

Humidity 29%
Wind Speed NW 4 MPH
Barometer NA
Dewpoint 22°F (-6°C)
Visibility NA
Last update 22 Jan 06:35 PM PST
Extended Forecast for

2 Miles S Clayton CA

  • Tonight

    Tonight: Mostly clear, with a low around 44. South wind 5 to 7 mph.

    Low: 44 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 58. North wind 3 to 6 mph.

    High: 58 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 42. Light and variable wind becoming west southwest around 5 mph in the evening.

    Low: 42 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 59. North wind 7 to 13 mph, with gusts as high as 22 mph.

    High: 59 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 39. Northeast wind around 7 mph, with gusts as high as 22 mph.

    Low: 39 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly cloudy, with a high near 55.

    High: 55 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 44. South wind 5 to 7 mph.
Friday
Mostly sunny, with a high near 58. North wind 3 to 6 mph.
Friday Night
Mostly clear, with a low around 42. Light and variable wind becoming west southwest around 5 mph in the evening.
Saturday
Sunny, with a high near 59. North wind 7 to 13 mph, with gusts as high as 22 mph.
Saturday Night
Mostly clear, with a low around 39. Northeast wind around 7 mph, with gusts as high as 22 mph.
Sunday
Mostly cloudy, with a high near 55.
Sunday Night
Mostly cloudy, with a low around 43.
Monday
Mostly sunny, with a high near 59.
Monday Night
Partly cloudy, with a low around 43.
Tuesday
Partly sunny, with a high near 59.
Tuesday Night
A slight chance of rain. Mostly cloudy, with a low around 46.
Wednesday
A chance of rain. Mostly cloudy, with a high near 58.
Wednesday Night
A slight chance of rain. Mostly cloudy, with a low around 45.
Thursday
Mostly sunny, with a high near 60.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Clayton CA
 37.92°N 121.93°W (Elev. 600 ft)
3:01 pm PST Jan 22, 2026
6pm PST Jan 22, 2026-6pm PST Jan 29, 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