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

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

45°F

7°C

Humidity 39%
Wind Speed N 15 MPH
Barometer NA
Dewpoint 21°F (-6°C)
Visibility NA
Wind Chill38°F (3°C)
Last update 03 Dec 05:40 PM PST
Extended Forecast for

3 Miles SSE Clayton CA

  • Tonight

    Tonight: Partly cloudy, with a low around 40. Northwest wind 5 to 7 mph, with gusts as high as 18 mph.

    Low: 40 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 51. Northwest wind around 6 mph becoming east in the afternoon.

    High: 51 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 44. Light and variable wind.

    Low: 44 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 55. Calm wind becoming north around 5 mph in the morning.

    High: 55 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 45. West wind around 5 mph becoming calm in the evening.

    Low: 45 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 56.

    High: 56 °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. Northwest wind 5 to 7 mph, with gusts as high as 18 mph.
Thursday
Sunny, with a high near 51. Northwest wind around 6 mph becoming east in the afternoon.
Thursday Night
Mostly clear, with a low around 44. Light and variable wind.
Friday
Sunny, with a high near 55. Calm wind becoming north around 5 mph in the morning.
Friday Night
Mostly clear, with a low around 45. West wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 56.
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 56.
Monday Night
Mostly clear, with a low around 46.
Tuesday
Mostly sunny, with a high near 56.
Tuesday Night
Partly cloudy, with a low around 46.
Wednesday
Partly sunny, with a high near 56.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Clayton CA
 37.9°N 121.9°W (Elev. 1814 ft)
Last Update:
12:26 pm PST Dec 3, 2025
Forecast Valid:
5pm PST Dec 3, 2025-6pm PST Dec 10, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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