Snow Squalls in the Northeast U.S. on Thursday; Heavy Rain Along the Gulf Coast

An arctic cold front will move through the Great Lakes and Northeast on Thursday, bringing moderate to heavy snow, strong winds, and possible whiteout conditions through Thursday afternoon. A storm system interacting with Gulf moisture will bring moderate to heavy rainfall to the western and central Gulf Coast on Thursday. Isolated instances of flash flooding will be possible. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

43°F

6°C

Humidity 47%
Wind Speed N 21 MPH
Barometer NA
Dewpoint 24°F (-4°C)
Visibility NA
Wind Chill34°F (1°C)
Last update 03 Dec 11:10 PM PST
Extended Forecast for

3 Miles S Clayton CA

  • Tonight

    Tonight: Partly cloudy, with a low around 40. North northeast wind 3 to 6 mph.

    Low: 40 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 50. East northeast wind around 6 mph.

    High: 50 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 44. Northeast wind around 5 mph becoming calm  in the evening.

    Low: 44 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 55. North wind 3 to 6 mph.

    High: 55 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 45. Light west southwest wind.

    Low: 45 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny

  • Sunday Night

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

    Low: 45 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 40. North northeast wind 3 to 6 mph.
Thursday
Sunny, with a high near 50. East northeast wind around 6 mph.
Thursday Night
Mostly clear, with a low around 44. Northeast wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 55. North wind 3 to 6 mph.
Friday Night
Mostly clear, with a low around 45. Light west southwest wind.
Saturday
Sunny, with a high near 55.
Saturday Night
Partly cloudy, with a low around 46.
Sunday
Mostly sunny, with a high near 55.
Sunday Night
Partly cloudy, with a low around 45.
Monday
Mostly sunny, with a high near 55.
Monday Night
Mostly clear, with a low around 46.
Tuesday
Mostly sunny, with a high near 55.
Tuesday Night
Partly cloudy, with a low around 46.
Wednesday
Mostly sunny, with a high near 56.
Basemap Options
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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 pm PST Dec 3, 2025
11pm PST Dec 3, 2025-6pm PST Dec 10, 2025
 
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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