Major Winter Storm in the North-Central U.S.; Severe Weather from the Mid-South to Ohio Valley

A major winter storm will bring a swath of heavy snowfall, strong winds, blizzard conditions and freezing rain to the Northern Plains into the Great Lakes region. 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. Critical fire weather concerns shift to the southern Rockies and Plains. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

Lat: 37.95°NLon: 121.88444°WElev: 1600.0ft.

NA

62°F

17°C

Humidity 47%
Wind Speed SW 5 MPH
Barometer NA
Dewpoint 41°F (5°C)
Visibility NA
Last update 15 Mar 06:28 AM PDT
Extended Forecast for

4 Miles ENE Clayton CA

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

    Today: Sunny, with a high near 78. North wind 8 to 10 mph, with gusts as high as 18 mph.

    High: 78 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 57. West wind 6 to 9 mph.

    Low: 57 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 81. North wind 5 to 8 mph.

    High: 81 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 58. North northwest wind around 7 mph becoming southwest after midnight.

    Low: 58 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 83. South southwest wind 5 to 7 mph becoming north northeast in the afternoon.

    High: 83 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 60.

    Low: 60 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 61.

    Low: 61 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 78. North wind 8 to 10 mph, with gusts as high as 18 mph.
Tonight
Mostly clear, with a low around 57. West wind 6 to 9 mph.
Monday
Sunny, with a high near 81. North wind 5 to 8 mph.
Monday Night
Clear, with a low around 58. North northwest wind around 7 mph becoming southwest after midnight.
Tuesday
Sunny, with a high near 83. South southwest wind 5 to 7 mph becoming north northeast in the afternoon.
Tuesday Night
Clear, with a low around 60.
Wednesday
Sunny, with a high near 85.
Wednesday Night
Clear, with a low around 61.
Thursday
Sunny, with a high near 86.
Thursday Night
Clear, with a low around 62.
Friday
Sunny, with a high near 87.
Friday Night
Mostly clear, with a low around 63.
Saturday
Sunny, with a high near 84.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Clayton CA
 37.95°N 121.88°W (Elev. 1358 ft)
2:40 am PDT Mar 15, 2026
7am PDT Mar 15, 2026-6pm PDT Mar 21, 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