Marine and Coastal Impacts from Imelda; Unsettled Weather in the West

Swells and high surf from both Imelda and Humberto are expected to bring dangerous marine conditions and rip currents to much of the East Coast over the next several days. A series of Pacific frontal systems will bring waves of showers and thunderstorms to portions of northern California and the Pacific Northwest through midweek. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

59°F

15°C

Humidity 92%
Wind Speed SSE 5 MPH
Barometer NA
Dewpoint 57°F (14°C)
Visibility NA
Last update 30 Sep 02:28 AM PDT
Extended Forecast for

Bethel Island CA

  • Overnight

    Overnight: Mostly cloudy, with a low around 61. Calm wind.

    Low: 61 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77. Light and variable wind becoming west southwest 6 to 11 mph in the morning. Winds could gust as high as 18 mph.

    High: 77 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of drizzle between 3am and 4am.  Mostly cloudy, with a low around 60. West wind 5 to 7 mph becoming calm  in the evening.

    Low: 60 °F

    Mostly Cloudy
    then Slight
    Chance
    Drizzle

  • Wednesday

    Wednesday: A chance of drizzle.  Partly sunny, with a high near 74. Calm wind becoming west around 6 mph in the afternoon.

    High: 74 °F

    Chance
    Drizzle

  • Wednesday Night

    Wednesday Night: A slight chance of drizzle before 11pm.  Mostly cloudy, with a low around 59. West northwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 59 °F

    Slight Chance
    Drizzle then
    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 56.

    Low: 56 °F

    Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 61. Calm wind.
Tuesday
Mostly sunny, with a high near 77. Light and variable wind becoming west southwest 6 to 11 mph in the morning. Winds could gust as high as 18 mph.
Tuesday Night
A slight chance of drizzle between 3am and 4am. Mostly cloudy, with a low around 60. West wind 5 to 7 mph becoming calm in the evening.
Wednesday
A chance of drizzle. Partly sunny, with a high near 74. Calm wind becoming west around 6 mph in the afternoon.
Wednesday Night
A slight chance of drizzle before 11pm. Mostly cloudy, with a low around 59. West northwest wind 5 to 7 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 75.
Thursday Night
Mostly clear, with a low around 55.
Friday
Sunny, with a high near 80.
Friday Night
Clear, with a low around 56.
Saturday
Sunny, with a high near 81.
Saturday Night
Clear, with a low around 55.
Sunday
Sunny, with a high near 79.
Sunday Night
Mostly clear, with a low around 55.
Monday
Sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
Bethel Island CA
 38.01°N 121.64°W (Elev. 3 ft)
2:30 am PDT Sep 30, 2025
2am PDT Sep 30, 2025-6pm PDT Oct 6, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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