Tracking Winter Weather and Frigid Temperatures This Weekend
Another clipper will drop into the Northern Plains and Upper Midwest into Sunday with snow and gusty winds contributing to some areas of blizzard conditions and snow squalls. Impactful snowfall will occur up and down the East Coast Sunday extending from the western Florida Panhandle to Maine. Read More >
Current conditions at
SJSU - Mount Diablo Summit Museum Rooftop (SJS02)
Lat: 37.881699°NLon: 121.914173°WElev: 3904.0ft.NA
65°F
18°C
| Humidity | 11% |
| Wind Speed | NW 2 MPH |
| Barometer | NA |
| Dewpoint | 10°F (-12°C) |
| Visibility | NA |
| Last update | 17 Jan 04:35 PM PST |
Extended Forecast for
2 Miles SSW Clayton CA
Tonight
Low: 48 °F
Mostly Cloudy
Sunday
High: 62 °F
Mostly Sunny
Sunday Night
Low: 47 °F
Partly Cloudy
M.L.King Day
High: 60 °F
Sunny
Monday Night
Low: 43 °F
Mostly Clear
Tuesday
High: 60 °F
Sunny
Tuesday Night
Low: 44 °F
Partly Cloudy
Wednesday
High: 60 °F
Mostly Sunny
Wednesday Night
Low: 45 °F
Partly Cloudy
Detailed Forecast
Tonight
Mostly cloudy, with a low around 48. Southeast wind 5 to 10 mph.
Sunday
Mostly sunny, with a high near 62. Northeast wind 5 to 8 mph.
Sunday Night
Partly cloudy, with a low around 47. East northeast wind around 7 mph.
M.L.King Day
Sunny, with a high near 60. North northeast wind 7 to 9 mph.
Monday Night
Mostly clear, with a low around 43. East wind around 8 mph.
Tuesday
Sunny, with a high near 60.
Tuesday Night
Partly cloudy, with a low around 44.
Wednesday
Mostly sunny, with a high near 60.
Wednesday Night
Partly cloudy, with a low around 45.
Thursday
Mostly sunny, with a high near 58.
Thursday Night
Partly cloudy, with a low around 45.
Friday
Mostly sunny, with a high near 57.
Friday Night
A slight chance of rain. Partly cloudy, with a low around 44.
Saturday
Mostly sunny, with a high near 57.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
2 Miles SSW Clayton CA
37.91°N 121.96°W (Elev. 1299 ft)
37.91°N 121.96°W (Elev. 1299 ft)
12:26 pm PST Jan 17, 2026
4pm PST Jan 17, 2026-6pm PST Jan 24, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
