Powerful Winter Storm from the Upper Midwest into the Northeast; Severe Thunderstorms in the Midwest and Ohio Valley

A rapidly-intensifying storm is expected to bring heavy snow, blizzard conditions, and icing from the Upper Midwest through the Great Lakes and Northeast. Scattered severe thunderstorms may produce severe/damaging wind gusts and a couple of tornadoes across parts of the Midwest and lower Ohio Valley through the evening. Arctic air will expand across the central and southern U.S.. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

46°F

8°C

Humidity 64%
Wind Speed NNW 12 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Wind Chill40°F (4°C)
Last update 29 Dec 01:28 AM PST
Extended Forecast for

2 Miles WSW Bethel Island CA

Cold Weather Advisory until December 29, 09:00am
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory until December 29, 09:00am

    NOW until 9:00am Mon

    Cold Weather Advisory

  • Overnight

    Low: 40 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 50. North wind around 7 mph becoming east southeast in the afternoon.

    High: 50 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 39. East southeast wind 3 to 5 mph.

    Low: 39 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 48. Northeast wind around 7 mph.

    High: 48 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 42. Light northeast wind.

    Low: 42 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of rain after 10am.  Cloudy, with a high near 47. New precipitation amounts of less than a tenth of an inch possible.

    High: 47 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain likely, mainly after 10pm.  Cloudy, with a low around 46. Chance of precipitation is 60%.

    Low: 46 °F

    Rain Likely

  • New Year's Day

    New Year's Day: Rain likely.  Cloudy, with a high near 51.

    High: 51 °F

    Rain Likely

Detailed Forecast

Overnight
Partly cloudy, with a low around 40. Northwest wind around 6 mph.
Monday
Mostly sunny, with a high near 50. North wind around 7 mph becoming east southeast in the afternoon.
Monday Night
Partly cloudy, with a low around 39. East southeast wind 3 to 5 mph.
Tuesday
Mostly cloudy, with a high near 48. Northeast wind around 7 mph.
Tuesday Night
Mostly cloudy, with a low around 42. Light northeast wind.
Wednesday
A 30 percent chance of rain after 10am. Cloudy, with a high near 47. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain likely, mainly after 10pm. Cloudy, with a low around 46. Chance of precipitation is 60%.
New Year's Day
Rain likely. Cloudy, with a high near 51.
Thursday Night
Rain likely. Mostly cloudy, with a low around 50.
Friday
Rain likely, mainly after 4pm. Cloudy, with a high near 54.
Friday Night
Rain likely. Cloudy, with a low around 51.
Saturday
Rain likely. Mostly cloudy, with a high near 53.
Saturday Night
Rain likely. Mostly cloudy, with a low around 50.
Sunday
A chance of rain. Partly sunny, with a high near 53.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Bethel Island CA
 38.02°N 121.7°W (Elev. 3 ft)
12:27 am PST Dec 29, 2025
1am PST Dec 29, 2025-6pm PST Jan 4, 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