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 >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

Lat: 37.881699°NLon: 121.914173°WElev: 3904.0ft.

NA

66°F

19°C

Humidity 21%
Wind Speed NNW 16 MPH
Barometer NA
Dewpoint 25°F (-4°C)
Visibility NA
Last update 15 Mar 07:40 PM PDT
Extended Forecast for

4 Miles ENE Danville CA

Heat Advisory March 16, 10:00am until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  • Tonight

    Tonight: Partly cloudy, with a low around 54. Light north wind.

    Low: 54 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 88. Calm wind becoming north northeast around 5 mph.

    High: 88 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 57. Light and variable wind.

    Low: 57 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 91. Light northeast wind.

    High: 91 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 59. Light and variable wind.

    Low: 59 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 60.

    Low: 60 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 60.

    Low: 60 °F

    Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 54. Light north wind.
Monday
Sunny, with a high near 88. Calm wind becoming north northeast around 5 mph.
Monday Night
Clear, with a low around 57. Light and variable wind.
Tuesday
Sunny, with a high near 91. Light northeast wind.
Tuesday Night
Clear, with a low around 59. Light and variable wind.
Wednesday
Sunny, with a high near 92.
Wednesday Night
Clear, with a low around 60.
Thursday
Sunny, with a high near 94.
Thursday Night
Clear, with a low around 60.
Friday
Sunny, with a high near 94.
Friday Night
Mostly clear, with a low around 58.
Saturday
Mostly sunny, with a high near 87.
Saturday Night
Mostly cloudy, with a low around 53.
Sunday
Mostly sunny, with a high near 80.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Danville CA
 37.85°N 121.94°W (Elev. 1362 ft)
1:25 pm PDT Mar 15, 2026
10pm PDT Mar 15, 2026-6pm PDT Mar 22, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database