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Current conditions at
SJSU - Mount Diablo Summit Museum Rooftop (SJS02)
Lat: 37.881699°NLon: 121.914173°WElev: 3904.0ft.NA
50°F
10°C
| Humidity | 16% |
| Wind Speed | WNW 7 MPH |
| Barometer | NA |
| Dewpoint | 7°F (-14°C) |
| Visibility | NA |
| Wind Chill | 47°F (8°C) |
| Last update | 30 Nov 04:25 AM PST |
Extended Forecast for
Clayton CA
Today

High: 48 °F
Partly Sunny
Tonight

Low: 40 °F
Partly Cloudy
Monday

High: 53 °F
Sunny
Monday Night

Low: 43 °F
Partly Cloudy
Tuesday

High: 57 °F
Sunny
Tuesday Night

Low: 44 °F
Partly Cloudy
Wednesday

High: 58 °F
Sunny
Wednesday Night

Low: 41 °F
Mostly Clear
Thursday

High: 55 °F
Sunny
Detailed Forecast
Today
Partly sunny, with a high near 48. Calm wind becoming north around 6 mph in the morning.
Tonight
Partly cloudy, with a low around 40. Light and variable wind.
Monday
Sunny, with a high near 53. Northeast wind around 7 mph.
Monday Night
Partly cloudy, with a low around 43. Calm wind.
Tuesday
Sunny, with a high near 57. Calm wind becoming north around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 44.
Wednesday
Sunny, with a high near 58.
Wednesday Night
Mostly clear, with a low around 41.
Thursday
Sunny, with a high near 55.
Thursday Night
Mostly clear, with a low around 42.
Friday
Sunny, with a high near 56.
Friday Night
Mostly clear, with a low around 44.
Saturday
Sunny, with a high near 58.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Clayton CA
37.91°N 121.96°W (Elev. 1299 ft)
37.91°N 121.96°W (Elev. 1299 ft)
12:26 am PST Nov 30, 2025
4am PST Nov 30, 2025-6pm PST Dec 6, 2025


