Record Warmth Lingers; Fire Weather Concerns; Unsettled Pacific Northwest

More record warm temperatures are forecast this week from California, Southwest, Plains then into the Mississippi Valley and Southeast. The warmth combining with dry conditions may result in elevated to locally critical fire weather conditions. Meanwhile, another Pacific system will move across the Pacific Northwest with lower elevation rain and mountain snows. For Hawaii, conditions improving. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

62°F

17°C

Humidity 40%
Wind Speed WNW 8 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Last update 22 Mar 10:50 PM PDT
Extended Forecast for

4 Miles SSE Clayton CA

  • Tonight

    Tonight: Mostly clear, with a low around 56. West northwest wind around 14 mph, with gusts as high as 25 mph.

    Low: 56 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 67. West wind 9 to 14 mph, with gusts as high as 25 mph.

    High: 67 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 55. West wind 11 to 16 mph, with gusts as high as 29 mph.

    Low: 55 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 70. West wind 7 to 11 mph, with gusts as high as 21 mph.

    High: 70 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 53. West southwest wind 13 to 15 mph, with gusts as high as 26 mph.

    Low: 53 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 53.

    Low: 53 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 56. West northwest wind around 14 mph, with gusts as high as 25 mph.
Monday
Sunny, with a high near 67. West wind 9 to 14 mph, with gusts as high as 25 mph.
Monday Night
Clear, with a low around 55. West wind 11 to 16 mph, with gusts as high as 29 mph.
Tuesday
Sunny, with a high near 70. West wind 7 to 11 mph, with gusts as high as 21 mph.
Tuesday Night
Clear, with a low around 53. West southwest wind 13 to 15 mph, with gusts as high as 26 mph.
Wednesday
Sunny, with a high near 68.
Wednesday Night
Mostly clear, with a low around 49.
Thursday
Mostly sunny, with a high near 66.
Thursday Night
Mostly cloudy, with a low around 53.
Friday
Partly sunny, with a high near 68.
Friday Night
Partly cloudy, with a low around 53.
Saturday
Mostly sunny, with a high near 68.
Saturday Night
Mostly clear, with a low around 51.
Sunday
Mostly sunny, with a high near 67.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Clayton CA
 37.87°N 121.92°W (Elev. 2818 ft)
11:33 pm PDT Mar 22, 2026
11pm PDT Mar 22, 2026-6pm PDT Mar 29, 2026
 
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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