
Major Winter Storm Ongoing in the Upper Midwest; Severe Weather Tonight from the Mid-South to the Ohio Valley
A major winter storm will continue to bring blizzard conditions, heavy snowfall, icing, and strong winds through Monday across the Upper Midwest and Upper Great Lakes. A line of storms will be capable of producing widespread damaging winds, tornadoes, and some large hail from the Mid-South to the Ohio Valley and the Southeast through tonight, moving into the Mid-Atlantic Monday. Read More >
Hazardous Weather Conditions
Current conditions at
SJSU - Mount Diablo Summit Museum Rooftop (SJS02)
Lat: 37.881699°NLon: 121.914173°WElev: 3904.0ft.NA
64°F
18°C
| Humidity | 26% |
| Wind Speed | N 17 MPH |
| Barometer | NA |
| Dewpoint | 29°F (-2°C) |
| Visibility | NA |
| Last update | 16 Mar 03:05 AM PDT |
Extended Forecast for
2 Miles S Clayton CA
Heat Advisory March 16, 10:00am until March 20, 08:00pm
Today

High: 86 °F
Sunny
Tonight

Low: 61 °F
Clear
Tuesday

High: 89 °F
Sunny
Tuesday Night

Low: 61 °F
Clear
Wednesday

High: 90 °F
Sunny
Wednesday Night

Low: 63 °F
Clear
Thursday

High: 92 °F
Sunny
Thursday Night

Low: 64 °F
Clear
Friday

High: 92 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 86. Light and variable wind becoming north 5 to 7 mph in the morning.
Tonight
Clear, with a low around 61. West wind around 6 mph becoming calm after midnight.
Tuesday
Sunny, with a high near 89. Calm wind becoming northeast around 6 mph in the morning.
Tuesday Night
Clear, with a low around 61. North wind around 6 mph becoming light and variable after midnight.
Wednesday
Sunny, with a high near 90. Calm wind becoming northeast around 6 mph in the afternoon.
Wednesday Night
Clear, with a low around 63.
Thursday
Sunny, with a high near 92.
Thursday Night
Clear, with a low around 64.
Friday
Sunny, with a high near 92.
Friday Night
Mostly clear, with a low around 63.
Saturday
Mostly sunny, with a high near 87.
Saturday Night
Mostly cloudy, with a low around 58.
Sunday
Sunny, with a high near 81.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
2 Miles S Clayton CA
37.92°N 121.93°W (Elev. 600 ft)
37.92°N 121.93°W (Elev. 600 ft)
1:40 am PDT Mar 16, 2026
4am PDT Mar 16, 2026-6pm PDT Mar 22, 2026



