Storm Systems to Impact the Central and Eastern U.S. Through the Weekend
Two storm systems will track through the central and eastern U.S. today through this weekend with areas of gusty winds, rain and heavy snow. Severe thunderstorms and heavy to excessive rainfall is forecast today from the Lower Mississippi River Valley to the Tennessee Valley. Damaging winds, a few tornadoes, and areas of flooding are possible. Read More >
Current conditions at
SJSU - Mount Diablo Summit Museum Rooftop (SJS02)
Lat: 37.881699°NLon: 121.914173°WElev: 3904.0ft.NA
40°F
4°C
| Humidity | 30% |
| Wind Speed | N 19 MPH |
| Barometer | NA |
| Dewpoint | 12°F (-11°C) |
| Visibility | NA |
| Wind Chill | 31°F (-1°C) |
| Last update | 09 Jan 11:05 AM PST |
Extended Forecast for
4 Miles SSE Clayton CA
Today
High: 45 °F
Sunny
Tonight
Low: 37 °F
Mostly Clear
Saturday
High: 47 °F
Mostly Sunny
Saturday Night
Low: 37 °F
Mostly Cloudy
Sunday
High: 49 °F
Mostly Sunny
Sunday Night
Low: 39 °F
Mostly Clear
Monday
High: 51 °F
Sunny
Monday Night
Low: 40 °F
Mostly Clear
Tuesday
High: 54 °F
Sunny
Detailed Forecast
Today
Sunny, with a steady temperature around 45. East northeast wind around 9 mph, with gusts as high as 18 mph.
Tonight
Mostly clear, with a low around 37. East wind around 7 mph.
Saturday
Mostly sunny, with a high near 47. Northeast wind 7 to 9 mph.
Saturday Night
Mostly cloudy, with a low around 37. East northeast wind around 6 mph.
Sunday
Mostly sunny, with a high near 49. Northeast wind around 6 mph.
Sunday Night
Mostly clear, with a low around 39.
Monday
Sunny, with a high near 51.
Monday Night
Mostly clear, with a low around 40.
Tuesday
Sunny, with a high near 54.
Tuesday Night
Mostly clear, with a low around 43.
Wednesday
Sunny, with a high near 56.
Wednesday Night
Mostly clear, with a low around 44.
Thursday
Sunny, with a high near 56.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
4 Miles SSE Clayton CA
37.87°N 121.92°W (Elev. 2818 ft)
37.87°N 121.92°W (Elev. 2818 ft)
12:26 am PST Jan 9, 2026
11am PST Jan 9, 2026-6pm PST Jan 15, 2026
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