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

67°F

19°C

Humidity 49%
Wind Speed WNW 3 MPH
Barometer NA
Dewpoint 47°F (8°C)
Visibility NA
Last update 22 Mar 04:35 PM PDT
Extended Forecast for

4 Miles S Clayton CA

  • Tonight

    Tonight: Mostly clear, with a low around 56. West wind around 15 mph, with gusts as high as 26 mph.

    Low: 56 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 69. West wind 9 to 14 mph, with gusts as high as 24 mph.

    High: 69 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 55. West southwest wind 13 to 15 mph, with gusts as high as 28 mph.

    Low: 55 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 71. West wind 9 to 11 mph, with gusts as high as 22 mph.

    High: 71 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 53. West southwest wind 14 to 16 mph, with gusts as high as 28 mph.

    Low: 53 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 50.

    Low: 50 °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 52.

    Low: 52 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 56. West wind around 15 mph, with gusts as high as 26 mph.
Monday
Sunny, with a high near 69. West wind 9 to 14 mph, with gusts as high as 24 mph.
Monday Night
Mostly clear, with a low around 55. West southwest wind 13 to 15 mph, with gusts as high as 28 mph.
Tuesday
Sunny, with a high near 71. West wind 9 to 11 mph, with gusts as high as 22 mph.
Tuesday Night
Mostly clear, with a low around 53. West southwest wind 14 to 16 mph, with gusts as high as 28 mph.
Wednesday
Sunny, with a high near 68.
Wednesday Night
Mostly clear, with a low around 50.
Thursday
Mostly sunny, with a high near 66.
Thursday Night
Mostly cloudy, with a low around 52.
Friday
Mostly sunny, with a high near 69.
Friday Night
Partly cloudy, with a low around 54.
Saturday
Mostly sunny, with a high near 68.
Saturday Night
Partly cloudy, with a low around 52.
Sunday
Sunny, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Clayton CA
 37.87°N 121.92°W (Elev. 2818 ft)
2:41 pm PDT Mar 22, 2026
5pm 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