Tracking Late December Winter Storm Expected to Impact the Northern Plains through the Northeast U.S.

A winter storm system will rapidly intensify over the Midwest on Sunday and track through the Great Lakes on Monday. Periods of heavy snow are anticipated across the Upper Great Lakes late Sunday and continuing into Monday. At least 1/10 inch of ice accumulation is expected from a wintry mix across much of the interior Northeast U.S. starting Sunday afternoon. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

43°F

6°C

Humidity 100%
Wind Speed S 5 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Wind Chill40°F (4°C)
Last update 27 Dec 09:28 AM PST
Extended Forecast for

5 Miles SSW Antioch CA

  • Today

    Today: Mostly sunny, with a high near 49. North northwest wind 6 to 8 mph.

    High: 49 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 40. West northwest wind around 6 mph.

    Low: 40 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 48. North wind around 6 mph.

    High: 48 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 38. North wind 3 to 5 mph.

    Low: 38 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 49. Northeast wind around 6 mph.

    High: 49 °F

    Sunny

  • Monday Night

    Monday Night: Patchy frost after 5am.  Otherwise, mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear
    then Patchy
    Frost

  • Tuesday

    Tuesday: Patchy frost before 7am.  Otherwise, mostly sunny, with a high near 50.

    High: 50 °F

    Patchy Frost
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Wednesday

    Wednesday: A slight chance of rain after 4pm.  Partly sunny, with a high near 49.

    High: 49 °F

    Partly Sunny
    then Slight
    Chance Rain

Detailed Forecast

Today
Mostly sunny, with a high near 49. North northwest wind 6 to 8 mph.
Tonight
Partly cloudy, with a low around 40. West northwest wind around 6 mph.
Sunday
Sunny, with a high near 48. North wind around 6 mph.
Sunday Night
Mostly clear, with a low around 38. North wind 3 to 5 mph.
Monday
Sunny, with a high near 49. Northeast wind around 6 mph.
Monday Night
Patchy frost after 5am. Otherwise, mostly clear, with a low around 37.
Tuesday
Patchy frost before 7am. Otherwise, mostly sunny, with a high near 50.
Tuesday Night
Mostly clear, with a low around 38.
Wednesday
A slight chance of rain after 4pm. Partly sunny, with a high near 49.
Wednesday Night
A chance of rain, mainly after 10pm. Mostly cloudy, with a low around 43.
New Year's Day
A chance of rain. Mostly cloudy, with a high near 49.
Thursday Night
Rain likely. Mostly cloudy, with a low around 46.
Friday
A chance of rain. Mostly cloudy, with a high near 51.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Antioch CA
 37.94°N 121.82°W (Elev. 600 ft)
7:59 am PST Dec 27, 2025
9am PST Dec 27, 2025-6pm PST Jan 2, 2026
 
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Additional Resources

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