Tracking Late Season Winter Storms; Unusual Early-Season Heat Wave in the Southwest

Heavy snow and high winds continue in the Great Lakes and Northeast. A moderate atmospheric river will continue to bring heavy precipitation to the Pacific Northwest and northern Rockies. A major winter storm will develop across the northern High Plains tonight into Saturday and rapidly strengthen as it moves into the Great Lakes on Sunday. Above-average temperatures expected in the Southwest. 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 74. West wind 9 to 13 mph becoming north in the morning. Winds could gust as high as 21 mph.

    High: 74 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 57. North wind 9 to 11 mph, with gusts as high as 22 mph.

    Low: 57 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 80. North wind 9 to 11 mph, with gusts as high as 23 mph.

    High: 80 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 65. North northwest wind 6 to 10 mph becoming west southwest after midnight. Winds could gust as high as 21 mph.

    Low: 65 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 83. North wind 5 to 7 mph.

    High: 83 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 68.

    Low: 68 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 69.

    Low: 69 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 74. West wind 9 to 13 mph becoming north in the morning. Winds could gust as high as 21 mph.
Tonight
Mostly clear, with a low around 57. North wind 9 to 11 mph, with gusts as high as 22 mph.
Sunday
Sunny, with a high near 80. North wind 9 to 11 mph, with gusts as high as 23 mph.
Sunday Night
Partly cloudy, with a low around 65. North northwest wind 6 to 10 mph becoming west southwest after midnight. Winds could gust as high as 21 mph.
Monday
Sunny, with a high near 83. North wind 5 to 7 mph.
Monday Night
Clear, with a low around 68.
Tuesday
Sunny, with a high near 86.
Tuesday Night
Clear, with a low around 69.
Wednesday
Sunny, with a high near 88.
Wednesday Night
Mostly clear, with a low around 68.
Thursday
Mostly sunny, with a high near 88.
Thursday Night
Partly cloudy, with a low around 71.
Friday
Sunny, with a high near 89.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Clayton CA
 37.87°N 121.92°W (Elev. 2818 ft)
1:28 am PDT Mar 14, 2026
5am PDT Mar 14, 2026-6pm PDT Mar 20, 2026
 
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Additional Resources

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Hourly Weather Forecast

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