Tracking a Winter Storm; Unusual Early-Season Heat Wave in the Southwest

A major winter storm will organize across the Northern Plains today and then rapidly strengthen as it moves into the Great Lakes on Sunday. Heavy snow and blowing snow are likely to persist over the Great Lakes into Monday night. Dry and gusty winds will produce a critical fire risk across the central/southern Plains. An early heatwave will begin to intensify over the western U.S. into next week. 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 28%
Wind Speed NW 12 MPH
Barometer NA
Dewpoint 26°F (-3°C)
Visibility NA
Last update 14 Mar 01:25 AM PDT
Extended Forecast for

4 Miles SSE Clayton CA

  • Today

    Today: Sunny, with a high near 73. West wind 8 to 10 mph becoming north northwest in the morning. Winds could gust as high as 18 mph.

    High: 73 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 55. West wind around 9 mph, with gusts as high as 18 mph.

    Low: 55 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 78. North wind 7 to 10 mph, with gusts as high as 21 mph.

    High: 78 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 59. North northwest wind 6 to 9 mph becoming west southwest in the evening. Winds could gust as high as 18 mph.

    Low: 59 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 82. Light and variable wind becoming north around 6 mph in the morning.

    High: 82 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 62.

    Low: 62 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 63.

    Low: 63 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 73. West wind 8 to 10 mph becoming north northwest in the morning. Winds could gust as high as 18 mph.
Tonight
Mostly clear, with a low around 55. West wind around 9 mph, with gusts as high as 18 mph.
Sunday
Sunny, with a high near 78. North wind 7 to 10 mph, with gusts as high as 21 mph.
Sunday Night
Partly cloudy, with a low around 59. North northwest wind 6 to 9 mph becoming west southwest in the evening. Winds could gust as high as 18 mph.
Monday
Sunny, with a high near 82. Light and variable wind becoming north around 6 mph in the morning.
Monday Night
Clear, with a low around 62.
Tuesday
Sunny, with a high near 84.
Tuesday Night
Clear, with a low around 63.
Wednesday
Sunny, with a high near 86.
Wednesday Night
Mostly clear, with a low around 62.
Thursday
Mostly sunny, with a high near 86.
Thursday Night
Partly cloudy, with a low around 65.
Friday
Sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Clayton CA
 37.9°N 121.9°W (Elev. 1814 ft)
1:28 am PDT Mar 14, 2026
9am PDT Mar 14, 2026-6pm PDT Mar 20, 2026
 
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Additional Resources

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