Current conditions at
Mount Diablo Summit Museum and Trailhead Rooftop (SJS02)
Lat: 37.881699°NLon: 121.914173°WElev: 3904.0ft.NA
27°C
81°F
| Humidity | 28% |
| Wind Speed | SE 1 MPH |
| Barometer | NA |
| Dewpoint | 7°C (45°F) |
| Visibility | NA |
| Heat Index | 27°C (80°F) |
| Last update | 14 Jul 11:50 AM PDT |
Extended Forecast for
Clayton CA
This Afternoon
High: 29 °C
Sunny
Tonight
Low: 13 °C
Clear
Tuesday
High: 26 °C
Sunny
Tuesday Night
Low: 13 °C
Mostly Clear
Wednesday
High: 24 °C
Sunny
Wednesday Night
Low: 13 °C
Mostly Clear
Thursday
High: 25 °C
Sunny
Thursday Night
Low: 13 °C
Mostly Clear
Friday
High: 26 °C
Sunny
Detailed Forecast
This Afternoon
Sunny, with a high near 29. West southwest wind 14 to 18 km/h, with gusts as high as 34 km/h.
Tonight
Clear, with a low around 13. South southwest wind 18 to 21 km/h, with gusts as high as 34 km/h.
Tuesday
Sunny, with a high near 26. West southwest wind 18 to 23 km/h, with gusts as high as 37 km/h.
Tuesday Night
Mostly clear, with a low around 13. Southwest wind 21 to 23 km/h, with gusts as high as 37 km/h.
Wednesday
Sunny, with a high near 24. Southwest wind 14 to 21 km/h, with gusts as high as 34 km/h.
Wednesday Night
Mostly clear, with a low around 13.
Thursday
Sunny, with a high near 25.
Thursday Night
Mostly clear, with a low around 13.
Friday
Sunny, with a high near 26.
Friday Night
Mostly clear, with a low around 13.
Saturday
Sunny, with a high near 27.
Saturday Night
Mostly clear, with a low around 13.
Sunday
Sunny, with a high near 27.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Clayton CA
37.91°N 121.96°W (Elev. 1299 m)
37.91°N 121.96°W (Elev. 1299 m)
11:34 am PDT Jul 14, 2025
12pm PDT Jul 14, 2025-6pm PDT Jul 20, 2025
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