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
66°F
19°C
| Humidity | 29% |
| Wind Speed | W 2 MPH |
| Barometer | NA |
| Dewpoint | 34°F (1°C) |
| Visibility | NA |
| Last update | 23 Mar 01:30 PM PDT |
Extended Forecast for
3 Miles S Clayton CA
This Afternoon
High: 71 °F
Sunny
Tonight
Low: 55 °F
Clear
Tuesday
High: 74 °F
Sunny
Tuesday Night
Low: 54 °F
Mostly Clear
Wednesday
High: 70 °F
Sunny
Wednesday Night
Low: 49 °F
Partly Cloudy
Thursday
High: 69 °F
Mostly Sunny
Thursday Night
Low: 53 °F
Partly Cloudy
Friday
High: 71 °F
Mostly Sunny
Detailed Forecast
This Afternoon
Sunny, with a high near 71. West wind 11 to 14 mph, with gusts as high as 23 mph.
Tonight
Clear, with a low around 55. West southwest wind 9 to 14 mph, with gusts as high as 25 mph.
Tuesday
Sunny, with a high near 74. West wind 7 to 13 mph, with gusts as high as 23 mph.
Tuesday Night
Mostly clear, with a low around 54. West southwest wind 11 to 14 mph, with gusts as high as 25 mph.
Wednesday
Sunny, with a high near 70. West southwest wind 11 to 14 mph, with gusts as high as 24 mph.
Wednesday Night
Partly cloudy, with a low around 49.
Thursday
Mostly sunny, with a high near 69.
Thursday Night
Partly cloudy, with a low around 53.
Friday
Mostly sunny, with a high near 71.
Friday Night
Partly cloudy, with a low around 53.
Saturday
Mostly sunny, with a high near 70.
Saturday Night
Partly cloudy, with a low around 52.
Sunday
Mostly sunny, with a high near 72.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles S Clayton CA
37.9°N 121.92°W (Elev. 1900 ft)
37.9°N 121.92°W (Elev. 1900 ft)
1:41 pm PDT Mar 23, 2026
2pm PDT Mar 23, 2026-6pm PDT Mar 29, 2026
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