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

75°F

24°C

Humidity 37%
Wind Speed N 5 MPH
Barometer NA
Dewpoint 47°F (8°C)
Visibility NA
Last update 16 Mar 04:28 PM PDT
Extended Forecast for

5 Miles SW Brentwood 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: 84 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 61. West northwest wind around 5 mph becoming calm  after midnight.

    Low: 61 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86. Calm wind becoming north northeast around 5 mph in the afternoon.

    High: 86 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 62. Light and variable wind.

    Low: 62 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88. Calm wind becoming north northeast around 5 mph in the afternoon.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 64.

    Low: 64 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 65.

    Low: 65 °F

    Clear

Detailed Forecast

This Afternoon
Sunny, with a high near 84. North northwest wind around 6 mph.
Tonight
Mostly clear, with a low around 61. West northwest wind around 5 mph becoming calm after midnight.
Tuesday
Sunny, with a high near 86. Calm wind becoming north northeast around 5 mph in the afternoon.
Tuesday Night
Clear, with a low around 62. Light and variable wind.
Wednesday
Sunny, with a high near 88. Calm wind becoming north northeast around 5 mph in the afternoon.
Wednesday Night
Clear, with a low around 64.
Thursday
Sunny, with a high near 90.
Thursday Night
Clear, with a low around 65.
Friday
Sunny, with a high near 92.
Friday Night
Mostly clear, with a low around 65.
Saturday
Sunny, with a high near 87.
Saturday Night
Partly cloudy, with a low around 60.
Sunday
Sunny, with a high near 80.
Sunday Night
Partly cloudy, with a low around 56.
Monday
Mostly sunny, with a high near 76.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Brentwood CA
 37.87°N 121.77°W (Elev. 758 ft)
1:25 pm PDT Mar 16, 2026
5pm PDT Mar 16, 2026-6pm PDT Mar 23, 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