Pacific Storm System Moves Inland; Strong Storm in Alaska

A Pacific storm system will bring low elevation/valley rain and mountain snow as it moves inland to the central Great Basin through the central Rockies through Thursday. Scattered thunderstorms are likely from California into the Great Basin. A large low pressure system continues to bring snow, blizzard conditions, damaging winds, and mixed precipitation along the Bering Sea and Southwest Alaska. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

41°F

5°C

Humidity 99%
Wind Speed SSE 14 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Wind Chill33°F (1°C)
Last update 11 Feb 06:05 AM PST
Extended Forecast for

4 Miles SSE Clayton CA

  • Today

    Today: Rain and thunderstorms likely before 2pm, then showers and possibly a thunderstorm between 2pm and 4pm, then rain likely and possibly a thunderstorm after 4pm.  High near 48. Breezy, with a south wind 17 to 22 mph, with gusts as high as 43 mph.  Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 48 °F

    Showers
    Likely and
    Breezy then
    Showers

  • Tonight

    Tonight: Rain likely, mainly before 1am.  Mostly cloudy, with a low around 42. Southeast wind 7 to 13 mph, with gusts as high as 23 mph.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 42 °F

    Rain Likely
    then Chance
    Rain

  • Thursday

    Thursday: Mostly sunny, with a high near 53. North wind around 8 mph.

    High: 53 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 46. West southwest wind around 9 mph.

    Low: 46 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 59. West northwest wind around 7 mph.

    High: 59 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 48.

    Low: 48 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 55.

    High: 55 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A chance of rain.  Mostly cloudy, with a low around 49.

    Low: 49 °F

    Chance Rain

  • Sunday

    Sunday: Rain likely.  Mostly cloudy, with a high near 54.

    High: 54 °F

    Rain Likely

Detailed Forecast

Today
Rain and thunderstorms likely before 2pm, then showers and possibly a thunderstorm between 2pm and 4pm, then rain likely and possibly a thunderstorm after 4pm. High near 48. Breezy, with a south wind 17 to 22 mph, with gusts as high as 43 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Rain likely, mainly before 1am. Mostly cloudy, with a low around 42. Southeast wind 7 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Mostly sunny, with a high near 53. North wind around 8 mph.
Thursday Night
Mostly clear, with a low around 46. West southwest wind around 9 mph.
Friday
Mostly sunny, with a high near 59. West northwest wind around 7 mph.
Friday Night
Mostly cloudy, with a low around 48.
Saturday
Mostly cloudy, with a high near 55.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 49.
Sunday
Rain likely. Mostly cloudy, with a high near 54.
Sunday Night
Rain. Mostly cloudy, with a low around 46.
Washington's Birthday
Rain. Mostly cloudy, with a high near 51.
Monday Night
Rain. Cloudy, with a low around 45. Breezy.
Tuesday
Rain, possibly mixed with snow. Cloudy, with a high near 49. Breezy.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Clayton CA
 37.87°N 121.92°W (Elev. 2818 ft)
3:16 am PST Feb 11, 2026
6am PST Feb 11, 2026-6pm PST Feb 17, 2026
 
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