Strong Storm System Brings Heavy Mountain Snow to the Sierra Nevada and Critical Fire Weather Conditions to the Plains

A Pacific storm system will continue to bring low elevation rain and mountain snow to much of the West through Wednesday, with heavy mountain snow expected in the higher elevations of the Sierra Nevada. This system will also bring strong winds to the Intermountain West, Rockies, and Plains, which will create Critical fire weather conditions for the High Plains. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

47°F

8°C

Humidity 91%
Wind Speed S 9 MPH
Barometer NA
Dewpoint 44°F (7°C)
Visibility NA
Wind Chill43°F (6°C)
Last update 21 Apr 09:28 PM PDT
Extended Forecast for

Bethel Island CA

  • Tonight

    Tonight: A 30 percent chance of rain after 3am.  Partly cloudy, with a low around 48. South southeast wind around 7 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Partly Cloudy
    then Chance
    Rain

  • Wednesday

    Wednesday: Rain and thunderstorms likely before 2pm, then a chance of rain between 2pm and 3pm.  Mostly cloudy, then gradually becoming sunny, with a high near 64. Southeast wind around 6 mph becoming north in the afternoon.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 64 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 47. West wind around 6 mph.

    Low: 47 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 72. West northwest wind around 7 mph.

    High: 72 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 49. West southwest wind 6 to 8 mph.

    Low: 49 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 70.

    High: 70 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 51.

    Low: 51 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 65.

    High: 65 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 30 percent chance of rain after 3am. Partly cloudy, with a low around 48. South southeast wind around 7 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Rain and thunderstorms likely before 2pm, then a chance of rain between 2pm and 3pm. Mostly cloudy, then gradually becoming sunny, with a high near 64. Southeast wind around 6 mph becoming north in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Mostly clear, with a low around 47. West wind around 6 mph.
Thursday
Sunny, with a high near 72. West northwest wind around 7 mph.
Thursday Night
Partly cloudy, with a low around 49. West southwest wind 6 to 8 mph.
Friday
Partly sunny, with a high near 70.
Friday Night
Mostly cloudy, with a low around 51.
Saturday
Partly sunny, with a high near 65.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
Mostly sunny, with a high near 66.
Sunday Night
Partly cloudy, with a low around 48.
Monday
Mostly sunny, with a high near 69.
Monday Night
Mostly cloudy, with a low around 50.
Tuesday
Mostly sunny, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
Bethel Island CA
 38.03°N 121.64°W (Elev. 3 ft)
8:32 pm PDT Apr 21, 2026
10pm PDT Apr 21, 2026-6pm PDT Apr 28, 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