Current conditions at
SJSU - Mount Diablo Summit Museum Rooftop (SJS02)
Lat: 37.881699°NLon: 121.914173°WElev: 3904.0ft.NA
38°F
3°C
| Humidity | 100% |
| Wind Speed | SSW 14 MPH |
| Barometer | NA |
| Dewpoint | 38°F (3°C) |
| Visibility | NA |
| Wind Chill | 30°F (-1°C) |
| Last update | 12 Apr 01:00 AM PDT |
Extended Forecast for
4 Miles S Clayton CA
Overnight
Low: 41 °F
Chance
Showers and
BreezySunday
High: 46 °F
Showers and
BreezySunday Night
Low: 42 °F
Chance
Showers then
Partly CloudyMonday
High: 54 °F
Mostly Sunny
Monday Night
Low: 46 °F
Mostly Clear
Tuesday
High: 56 °F
Sunny
Tuesday Night
Low: 45 °F
Mostly Clear
Wednesday
High: 55 °F
Mostly Sunny
Wednesday Night
Low: 49 °F
Partly Cloudy
Detailed Forecast
Overnight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 41. Breezy, with a south southwest wind 20 to 22 mph, with gusts as high as 43 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers and possibly a thunderstorm, mainly before 4pm, then a chance of showers and thunderstorms after 4pm. High near 46. Breezy, with a southwest wind 18 to 25 mph, with gusts as high as 47 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday Night
A 40 percent chance of showers, mainly before 8pm. Partly cloudy, with a low around 42. West southwest wind 6 to 15 mph, with gusts as high as 28 mph. New precipitation amounts of less than a tenth of an inch possible.
Monday
Mostly sunny, with a high near 54. West northwest wind 6 to 8 mph.
Monday Night
Mostly clear, with a low around 46. Southwest wind 10 to 13 mph, with gusts as high as 22 mph.
Tuesday
Sunny, with a high near 56.
Tuesday Night
Mostly clear, with a low around 45.
Wednesday
Mostly sunny, with a high near 55.
Wednesday Night
Partly cloudy, with a low around 49.
Thursday
Sunny, with a high near 58.
Thursday Night
Clear, with a low around 46.
Friday
Sunny, with a high near 62.
Friday Night
Mostly clear, with a low around 47.
Saturday
Sunny, with a high near 64.
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)
1:25 am PDT Apr 12, 2026
2am PDT Apr 12, 2026-6pm PDT Apr 18, 2026
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