Record Heat Remains in Place This Week; Severe Thunderstorms Possible Thursday
Record warmth will persist across portions of California, the Southwest U.S., the central Great Basin and return back to areas of the central/southern Plains and mid-lower Mississippi Valley this week. Over 200 new record high temperatures are forecast. Severe thunderstorms are being outlooked on Thursday over the Midwest. Read More >
Current conditions at
SJSU - Mount Diablo Summit Museum Rooftop (SJS02)
Lat: 37.881699°NLon: 121.914173°WElev: 3904.0ft.NA
65°F
18°C
| Humidity | 30% |
| Wind Speed | W 3 MPH |
| Barometer | NA |
| Dewpoint | 33°F (1°C) |
| Visibility | NA |
| Last update | 23 Mar 11:25 AM PDT |
Extended Forecast for
4 Miles S Clayton CA
Today
High: 67 °F
Sunny
Tonight
Low: 55 °F
Clear
Tuesday
High: 70 °F
Sunny
Tuesday Night
Low: 53 °F
Clear
Wednesday
High: 68 °F
Sunny
Wednesday Night
Low: 49 °F
Mostly Clear
Thursday
High: 66 °F
Mostly Sunny
Thursday Night
Low: 53 °F
Mostly Cloudy
Friday
High: 68 °F
Partly Sunny
Detailed Forecast
Today
Sunny, with a high near 67. West wind 9 to 14 mph, with gusts as high as 25 mph.
Tonight
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. West wind 11 to 14 mph, with gusts as high as 25 mph.
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.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
4 Miles S Clayton CA
37.87°N 121.92°W (Elev. 2818 ft)
37.87°N 121.92°W (Elev. 2818 ft)
8:27 am PDT Mar 23, 2026
11am PDT Mar 23, 2026-6pm PDT Mar 29, 2026
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