Major Winter Storm Ongoing in the Upper Midwest and Great Lakes; Severe Weather Along the East Coast

A major winter storm will continue to bring blizzard conditions, heavy snowfall, icing, and strong winds through today across the Upper Midwest and Upper Great Lakes. Widespread severe storms are expected across the entire eastern U.S. with the highest threat over the interior Mid-Atlantic, where there is a risk for damaging wind gusts and a few tornadoes. Heat continues to build in the West. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

73°F

23°C

Humidity 37%
Wind Speed WNW 5 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 16 Mar 12:28 PM PDT
Extended Forecast for

4 Miles ENE Clayton CA

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

    NOW until 8:00pm Fri

    Heat Advisory

  • This Afternoon

    High: 80 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 59. West southwest wind 5 to 7 mph.

    Low: 59 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 82. West northwest wind 5 to 7 mph becoming northeast in the morning.

    High: 82 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 60. North northwest wind around 6 mph becoming west southwest in the evening.

    Low: 60 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 84. West southwest wind 5 to 7 mph becoming north northeast in the morning.

    High: 84 °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

  • Thursday Night

    Thursday Night: Clear, with a low around 63.

    Low: 63 °F

    Clear

Detailed Forecast

This Afternoon
Sunny, with a high near 80. North wind around 8 mph.
Tonight
Mostly clear, with a low around 59. West southwest wind 5 to 7 mph.
Tuesday
Sunny, with a high near 82. West northwest wind 5 to 7 mph becoming northeast in the morning.
Tuesday Night
Clear, with a low around 60. North northwest wind around 6 mph becoming west southwest in the evening.
Wednesday
Sunny, with a high near 84. West southwest wind 5 to 7 mph becoming north northeast in the morning.
Wednesday Night
Clear, with a low around 61.
Thursday
Sunny, with a high near 86.
Thursday Night
Clear, with a low around 63.
Friday
Sunny, with a high near 86.
Friday Night
Mostly clear, with a low around 62.
Saturday
Sunny, with a high near 82.
Saturday Night
Partly cloudy, with a low around 58.
Sunday
Sunny, with a high near 75.
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)
1:25 pm PDT Mar 16, 2026
1pm PDT Mar 16, 2026-6pm PDT Mar 22, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database