Above Average Temperatures for the West and Central Plains; Lake Effect Snow Continues

Well above average temperatures will prevail across the Plains and the West Coast this week, while a cold front will bring Arctic air to the South and East Coast Thursday and Friday. Lake effect snow is forecast downwind of the Great Lakes through Thursday along and behind the Arctic front, as well as mountain snow across the Southern Appalachians. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

54°F

12°C

Humidity 39%
Wind Speed N 18 MPH
Barometer NA
Dewpoint 29°F (-2°C)
Visibility NA
Last update 14 Jan 04:10 AM PST
Extended Forecast for

3 Miles S Clayton CA

  • Today

    Today: Sunny, with a high near 60. East wind 7 to 10 mph.

    High: 60 °F

    Sunny

  • Tonight

    Tonight: Clear, with a steady temperature around 51. East wind 8 to 10 mph.

    Low: 51 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 59. East wind around 9 mph.

    High: 59 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 44. East northeast wind around 6 mph.

    Low: 44 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 58. Northeast wind around 7 mph.

    High: 58 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 60. East wind 7 to 10 mph.
Tonight
Clear, with a steady temperature around 51. East wind 8 to 10 mph.
Thursday
Sunny, with a high near 59. East wind around 9 mph.
Thursday Night
Mostly clear, with a low around 44. East northeast wind around 6 mph.
Friday
Sunny, with a high near 58. Northeast wind around 7 mph.
Friday Night
Mostly clear, with a low around 42.
Saturday
Sunny, with a high near 57.
Saturday Night
Partly cloudy, with a low around 43.
Sunday
Sunny, with a high near 57.
Sunday Night
Mostly clear, with a low around 42.
M.L.King Day
Sunny, with a high near 56.
Monday Night
Mostly clear, with a low around 42.
Tuesday
Mostly sunny, with a high near 56.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Clayton CA
 37.9°N 121.92°W (Elev. 1900 ft)
1:32 am PST Jan 14, 2026
4am PST Jan 14, 2026-6pm PST Jan 20, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database