Late January Extreme Cold; Watching for Another East Coast Storm Threat This Weekend

Well below normal temperatures will continue for the eastern half of the Lower 48 this week. Another blast of arctic air will spread from the Plains through the East/Southeast Friday into Saturday with more record lows expected even into Florida. Forecasts are being monitored for increasing potential of another significant winter storm to impact the eastern United States this coming weekend. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

46°F

8°C

Humidity 88%
Wind Speed NNE 12 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Wind Chill40°F (4°C)
Last update 27 Jan 02:28 AM PST
Extended Forecast for

Bethel Island CA

  • Overnight

    Overnight: Mostly cloudy, with a low around 39. Light northeast wind.

    Low: 39 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Increasing clouds, with a high near 59. Light and variable wind becoming south southwest 6 to 11 mph in the morning.

    High: 59 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain, mainly after 10pm.  Mostly cloudy, with a low around 47. West southwest wind 5 to 10 mph becoming light and variable  after midnight.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 47 °F

    Chance Rain

  • Wednesday

    Wednesday: Partly sunny, with a high near 58. North northwest wind 7 to 10 mph.

    High: 58 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 42. West northwest wind around 6 mph.

    Low: 42 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 60.

    High: 60 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 39. Light northeast wind.
Tuesday
Increasing clouds, with a high near 59. Light and variable wind becoming south southwest 6 to 11 mph in the morning.
Tuesday Night
A 30 percent chance of rain, mainly after 10pm. Mostly cloudy, with a low around 47. West southwest wind 5 to 10 mph becoming light and variable after midnight. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Partly sunny, with a high near 58. North northwest wind 7 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 42. West northwest wind around 6 mph.
Thursday
Mostly sunny, with a high near 59.
Thursday Night
Mostly cloudy, with a low around 44.
Friday
Mostly cloudy, with a high near 60.
Friday Night
Mostly cloudy, with a low around 45.
Saturday
Mostly cloudy, with a high near 60.
Saturday Night
Mostly cloudy, with a low around 46.
Sunday
A slight chance of rain. Mostly cloudy, with a high near 62.
Sunday Night
A slight chance of rain. Mostly cloudy, with a low around 47.
Monday
Mostly sunny, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
Bethel Island CA
 38.03°N 121.64°W (Elev. 3 ft)
2:38 am PST Jan 27, 2026
2am PST Jan 27, 2026-6pm PST Feb 2, 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