Current conditions at
SJSU - Mount Diablo Summit Museum Rooftop (SJS02)
Lat: 37.881699°NLon: 121.914173°WElev: 3904.0ft.NA
44°F
7°C
| Humidity | 97% |
| Wind Speed | S 7 MPH |
| Barometer | NA |
| Dewpoint | 43°F (6°C) |
| Visibility | NA |
| Wind Chill | 40°F (4°C) |
| Last update | 10 Apr 05:45 AM PDT |
Extended Forecast for
4 Miles S Clayton CA
Today

High: 65 °F
Showers
Tonight

Low: 49 °F
Showers
LikelySaturday

High: 62 °F
Showers
Saturday Night

Low: 44 °F
Showers
Sunday

High: 58 °F
Showers
Sunday Night

Low: 43 °F
Chance Rain
Monday

High: 62 °F
Mostly Sunny
Monday Night

Low: 43 °F
Mostly Clear
Tuesday

High: 66 °F
Sunny
Detailed Forecast
Today
Showers and possibly a thunderstorm, mainly before 3pm, then a chance of showers and thunderstorms after 3pm. High near 65. South southwest wind 8 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers likely and possibly a thunderstorm before 11pm, then a chance of rain after 11pm. Mostly cloudy, with a low around 49. South southwest wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Rain likely, then showers and possibly a thunderstorm after 11am. High near 62. South wind 11 to 21 mph, with gusts as high as 36 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Showers and possibly a thunderstorm before 2am, then rain after 2am. Low around 44. South wind 14 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday
Rain before 8am, then showers and possibly a thunderstorm after 8am. High near 58. South wind 14 to 18 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
A 40 percent chance of rain, mainly before 11pm. Mostly cloudy, with a low around 43. New precipitation amounts of less than a tenth of an inch possible.
Monday
Mostly sunny, with a high near 62.
Monday Night
Mostly clear, with a low around 43.
Tuesday
Sunny, with a high near 66.
Tuesday Night
Mostly clear, with a low around 43.
Wednesday
Sunny, with a high near 70.
Wednesday Night
Partly cloudy, with a low around 47.
Thursday
Mostly sunny, with a high near 72.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
4 Miles S Clayton CA
37.87°N 121.95°W (Elev. 1509 ft)
37.87°N 121.95°W (Elev. 1509 ft)
2:51 am PDT Apr 10, 2026
9am PDT Apr 10, 2026-6pm PDT Apr 16, 2026


