Frigid Cold in the East; Snow Continues in the Great Lakes

A frigid cold airmass will continue to bring colder weather across the eastern two thirds of the country early this week. Record low temperatures are expected to be tied or broken across the Southeast and Florida. Periods snow will continue downwind of the Great Lakes and in portions of interior New England through Tuesday afternoon, with several inches of snowfall accumulation expected. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

59°F

15°C

Humidity 48%
Wind Speed S 9 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Last update 11 Nov 09:35 PM PST
Extended Forecast for

3 Miles S Clayton CA

Wind Advisory November 12, 10:00pm until November 13, 10:00am
Click here for hazard details and duration
Wind Advisory
  • Tonight

    Tonight: Mostly cloudy, with a low around 54. South wind 11 to 15 mph, with gusts as high as 23 mph.

    Low: 54 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of rain after 4pm.  Partly sunny, with a high near 61. South wind 14 to 18 mph, with gusts as high as 25 mph.

    High: 61 °F

    Partly Sunny
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: Rain, mainly between 10pm and 4am, then showers and possibly a thunderstorm after 4am.  Steady temperature around 59. Breezy, with a south wind 20 to 24 mph, with gusts as high as 45 mph.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 59 °F

    Showers and
    Breezy

  • Thursday

    Thursday: Showers and possibly a thunderstorm before 10am, then showers likely.  High near 59. Breezy, with a southwest wind 16 to 23 mph, with gusts as high as 43 mph.  Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.

    High: 59 °F

    Showers and
    Breezy

  • Thursday Night

    Thursday Night: A 50 percent chance of showers.  Mostly cloudy, with a low around 50. Southwest wind 8 to 11 mph, with gusts as high as 21 mph.  New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 50 °F

    Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers, mainly before 10am.  Mostly sunny, with a high near 52. New precipitation amounts of less than a tenth of an inch possible.

    High: 52 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 54. South wind 11 to 15 mph, with gusts as high as 23 mph.
Wednesday
A 30 percent chance of rain after 4pm. Partly sunny, with a high near 61. South wind 14 to 18 mph, with gusts as high as 25 mph.
Wednesday Night
Rain, mainly between 10pm and 4am, then showers and possibly a thunderstorm after 4am. Steady temperature around 59. Breezy, with a south wind 20 to 24 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
Showers and possibly a thunderstorm before 10am, then showers likely. High near 59. Breezy, with a southwest wind 16 to 23 mph, with gusts as high as 43 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
Thursday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 50. Southwest wind 8 to 11 mph, with gusts as high as 21 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
A 30 percent chance of showers, mainly before 10am. Mostly sunny, with a high near 52. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Partly cloudy, with a low around 47.
Saturday
Sunny, with a high near 55.
Saturday Night
Partly cloudy, with a low around 49.
Sunday
A slight chance of rain after 10am. Partly sunny, with a high near 54.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 50.
Monday
A slight chance of rain. Mostly sunny, with a high near 52.
Monday Night
Partly cloudy, with a low around 47.
Tuesday
Sunny, with a high near 53.
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)
8:22 pm PST Nov 11, 2025
10pm PST Nov 11, 2025-6pm PST Nov 18, 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