Heavy Lake Effect Snow; Subfreezing Temperatures in the Eastern U.S.

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. The Arctic front will continue to bring increasing winds to the Northeast that will remain gusty. Subfreezing overnight low temperatures will be found as far south as the Gulf Coast. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

51°F

11°C

Humidity 40%
Wind Speed N 10 MPH
Barometer NA
Dewpoint 27°F (-3°C)
Visibility NA
Last update 30 Dec 03:28 AM PST
Extended Forecast for

Bethel Island CA

Cold Weather Advisory until December 30, 09:00am
Dense Fog Advisory December 30, 04:07am until December 30, 10:00am
Click here for hazard details and duration
Cold Weather Advisory
Dense Fog Advisory
  •  
    Cold Weather Advisory until December 30, 09:00am
    Dense Fog Advisory December 30, 04:07am until December 30, 10:00am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Overnight

    Low: 38 °F

    Patchy Dense
    Fog

  • Tuesday

    Tuesday: Areas of dense fog.  Otherwise, cloudy, with a high near 47. Northeast wind around 6 mph.

    High: 47 °F

    Areas Dense
    Fog

  • Tuesday Night

    Tuesday Night: Patchy fog before midnight, then areas of fog after 3am.  Otherwise, cloudy, with a low around 43. North wind 5 to 7 mph becoming light and variable  after midnight.

    Low: 43 °F

    Areas Fog

  • Wednesday

    Wednesday: Rain, mainly after 4pm.  Patchy fog. High near 50. East northeast wind 3 to 6 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 50 °F

    Chance Rain
    and Patchy
    Fog then Rain
    and Patchy
    Fog

  • Wednesday Night

    Wednesday Night: Rain.  Areas of fog. Low around 48. East wind 6 to 8 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 48 °F

    Rain and
    Areas Fog

  • New Year's Day

    New Year's Day: Rain.  High near 57. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 57 °F

    Rain

  • Thursday Night

    Thursday Night: Rain, mainly before 4am, then showers likely and possibly a thunderstorm after 4am.  Low around 54. Chance of precipitation is 80%.

    Low: 54 °F

    Showers

  • Friday

    Friday: Showers likely and possibly a thunderstorm before 10am, then rain likely after 10am.  Cloudy, with a high near 57.

    High: 57 °F

    Showers
    Likely

Detailed Forecast

Overnight
Patchy dense fog. Otherwise, mostly cloudy, with a low around 38. East northeast wind around 5 mph.
Tuesday
Areas of dense fog. Otherwise, cloudy, with a high near 47. Northeast wind around 6 mph.
Tuesday Night
Patchy fog before midnight, then areas of fog after 3am. Otherwise, cloudy, with a low around 43. North wind 5 to 7 mph becoming light and variable after midnight.
Wednesday
Rain, mainly after 4pm. Patchy fog. High near 50. East northeast wind 3 to 6 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain. Areas of fog. Low around 48. East wind 6 to 8 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
New Year's Day
Rain. High near 57. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Rain, mainly before 4am, then showers likely and possibly a thunderstorm after 4am. Low around 54. Chance of precipitation is 80%.
Friday
Showers likely and possibly a thunderstorm before 10am, then rain likely after 10am. Cloudy, with a high near 57.
Friday Night
Rain. Cloudy, with a low around 50.
Saturday
Rain likely, mainly after 4pm. Cloudy, with a high near 54.
Saturday Night
Rain likely. Patchy fog. Otherwise, cloudy, with a low around 47.
Sunday
A chance of rain. Patchy fog. Otherwise, mostly cloudy, with a high near 54.
Sunday Night
A chance of rain. Patchy fog. Otherwise, mostly cloudy, with a low around 46.
Monday
A chance of rain. Mostly cloudy, with a high near 52.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Bethel Island CA
 38.03°N 121.64°W (Elev. 3 ft)
12:27 am PST Dec 30, 2025
4am PST Dec 30, 2025-6pm PST Jan 5, 2026
 
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Additional Resources

Radar & Satellite Image

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