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

Tracking Severe Thunderstorms and Excessive Rainfall in the Southern U.S.; Winter Storm Possible in the Northern U.S.

A storm system moving across Texas will bring a few severe thunderstorms capable of large hail into this evening across parts of west Texas. Heavy to excessive rainfall may bring flooding into tonight from west Texas into northern Texas before shifting into the lower Mississippi Valley through Monday. A winter storm may impact the northern Plains and Upper Midwest late Monday through Tuesday. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

52°F

11°C

Humidity 40%
Wind Speed W 6 MPH
Barometer NA
Dewpoint 28°F (-2°C)
Visibility NA
Last update 23 Nov 05:05 PM PST
Extended Forecast for

4 Miles SSE Clayton CA

  • Tonight

    Tonight: Partly cloudy, with a low around 45. Northwest wind 3 to 5 mph.

    Low: 45 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a steady temperature around 48. North northeast wind 5 to 7 mph.

    High: 48 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a steady temperature around 47. Calm wind becoming northeast around 6 mph after midnight.

    Low: 47 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 50. North northeast wind around 8 mph.

    High: 50 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 41. North northeast wind around 5 mph.

    Low: 41 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 49.

    High: 49 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

  • Thanksgiving Day

    Thanksgiving Day: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 45. Northwest wind 3 to 5 mph.
Monday
Mostly sunny, with a steady temperature around 48. North northeast wind 5 to 7 mph.
Monday Night
Mostly clear, with a steady temperature around 47. Calm wind becoming northeast around 6 mph after midnight.
Tuesday
Sunny, with a high near 50. North northeast wind around 8 mph.
Tuesday Night
Partly cloudy, with a low around 41. North northeast wind around 5 mph.
Wednesday
Sunny, with a high near 49.
Wednesday Night
Partly cloudy, with a low around 42.
Thanksgiving Day
Mostly sunny, with a high near 50.
Thursday Night
Partly cloudy, with a low around 44.
Friday
Mostly sunny, with a high near 50.
Friday Night
Partly cloudy, with a low around 43.
Saturday
Partly sunny, with a high near 46.
Saturday Night
Mostly cloudy, with a low around 41.
Sunday
Mostly sunny, with a high near 45.
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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 pm PST Nov 23, 2025
Forecast Valid:
5pm PST Nov 23, 2025-6pm PST Nov 30, 2025
 
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