
Above Average Temperatures for the West and Central Plains; Lake Effect Snow Continues
Well above average temperatures will prevail across the Plains and the West Coast this week, while a cold front will bring Arctic air to the South and East Coast Thursday and Friday. Lake effect snow is forecast downwind of the Great Lakes through Thursday along and behind the Arctic front, as well as mountain snow across the Southern Appalachians. Read More >
Current conditions at
SJSU - Mount Diablo Summit Museum Rooftop (SJS02)
Lat: 37.881699°NLon: 121.914173°WElev: 3904.0ft.NA
54°F
12°C
| Humidity | 39% |
| Wind Speed | N 18 MPH |
| Barometer | NA |
| Dewpoint | 29°F (-2°C) |
| Visibility | NA |
| Last update | 14 Jan 04:10 AM PST |
Extended Forecast for
3 Miles S Clayton CA
Today

High: 60 °F
Sunny
Tonight

Low: 51 °F
Clear
Thursday

High: 59 °F
Sunny
Thursday Night

Low: 44 °F
Mostly Clear
Friday

High: 58 °F
Sunny
Friday Night

Low: 42 °F
Mostly Clear
Saturday

High: 57 °F
Sunny
Saturday Night

Low: 43 °F
Partly Cloudy
Sunday

High: 57 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 60. East wind 7 to 10 mph.
Tonight
Clear, with a steady temperature around 51. East wind 8 to 10 mph.
Thursday
Sunny, with a high near 59. East wind around 9 mph.
Thursday Night
Mostly clear, with a low around 44. East northeast wind around 6 mph.
Friday
Sunny, with a high near 58. Northeast wind around 7 mph.
Friday Night
Mostly clear, with a low around 42.
Saturday
Sunny, with a high near 57.
Saturday Night
Partly cloudy, with a low around 43.
Sunday
Sunny, with a high near 57.
Sunday Night
Mostly clear, with a low around 42.
M.L.King Day
Sunny, with a high near 56.
Monday Night
Mostly clear, with a low around 42.
Tuesday
Mostly sunny, with a high near 56.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
3 Miles S Clayton CA
37.9°N 121.92°W (Elev. 1900 ft)
37.9°N 121.92°W (Elev. 1900 ft)
1:32 am PST Jan 14, 2026
4am PST Jan 14, 2026-6pm PST Jan 20, 2026


