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

72°F

22°C

Humidity 29%
Wind Speed WSW 4 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Last update 15 Mar 01:28 PM PDT
Extended Forecast for

5 Miles SSW Antioch CA

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

    This Afternoon: Sunny, with a high near 81. North northwest wind around 8 mph.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 58. West northwest wind 3 to 7 mph.

    Low: 58 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 84. Calm wind becoming north northwest around 6 mph in the morning.

    High: 84 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 60. West northwest wind around 5 mph becoming light and variable  after midnight.

    Low: 60 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 87. Calm wind becoming north northeast around 6 mph in the afternoon.

    High: 87 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 62.

    Low: 62 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 63.

    Low: 63 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 81. North northwest wind around 8 mph.
Tonight
Partly cloudy, with a low around 58. West northwest wind 3 to 7 mph.
Monday
Sunny, with a high near 84. Calm wind becoming north northwest around 6 mph in the morning.
Monday Night
Clear, with a low around 60. West northwest wind around 5 mph becoming light and variable after midnight.
Tuesday
Sunny, with a high near 87. Calm wind becoming north northeast around 6 mph in the afternoon.
Tuesday Night
Clear, with a low around 62.
Wednesday
Sunny, with a high near 89.
Wednesday Night
Clear, with a low around 63.
Thursday
Sunny, with a high near 90.
Thursday Night
Clear, with a low around 64.
Friday
Sunny, with a high near 92.
Friday Night
Mostly clear, with a low around 62.
Saturday
Mostly sunny, with a high near 86.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Antioch CA
 37.94°N 121.82°W (Elev. 600 ft)
1:25 pm PDT Mar 15, 2026
2pm 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