Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

59°F

15°C

Humidity 37%
Wind Speed NW 5 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Last update 19 Jan 12:28 PM PST
Extended Forecast for

2 Miles SSE Bethel Island CA

  • M.L.King Day

    M.L.King Day: Partly sunny, with a steady temperature around 54. Light east northeast wind.

    High: 54 °F

    Partly Sunny

  • Tonight

    Tonight: Patchy dense fog after 7pm.  Otherwise, increasing clouds, with a low around 40. Calm wind.

    Low: 40 °F

    Patchy Dense
    Fog

  • Tuesday

    Tuesday: Patchy dense fog before noon.  Otherwise, mostly cloudy, with a high near 55. Light north wind.

    High: 55 °F

    Patchy Dense
    Fog then
    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Patchy fog after 9pm.  Otherwise, mostly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Patchy Fog

  • Wednesday

    Wednesday: Cloudy, with a high near 58. Light north wind.

    High: 58 °F

    Cloudy

  • Wednesday Night

    Wednesday Night: Cloudy, with a low around 47.

    Low: 47 °F

    Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny

  • Thursday Night

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

    Low: 44 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

Detailed Forecast

M.L.King Day
Partly sunny, with a steady temperature around 54. Light east northeast wind.
Tonight
Patchy dense fog after 7pm. Otherwise, increasing clouds, with a low around 40. Calm wind.
Tuesday
Patchy dense fog before noon. Otherwise, mostly cloudy, with a high near 55. Light north wind.
Tuesday Night
Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 44. Calm wind.
Wednesday
Cloudy, with a high near 58. Light north wind.
Wednesday Night
Cloudy, with a low around 47.
Thursday
Partly sunny, with a high near 62.
Thursday Night
Partly cloudy, with a low around 44.
Friday
Mostly sunny, with a high near 59.
Friday Night
Mostly clear, with a low around 42.
Saturday
Mostly sunny, with a high near 59.
Saturday Night
Partly cloudy, with a low around 42.
Sunday
Partly sunny, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Bethel Island CA
 38.01°N 121.64°W (Elev. 3 ft)
1:15 pm PST Jan 19, 2026
1pm PST Jan 19, 2026-6pm PST Jan 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database