Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

N/A

Humidity 25%
Wind Speed SE 9 MPH
Barometer NA
Dewpoint N/A
Visibility NA
Last update 10 Aug 02:28 AM PDT
Extended Forecast for

Bethel Island CA

  • Tonight

    Tonight: A 20 percent chance of showers after 4am.  Mostly cloudy, with a low around 67. West wind 5 to 10 mph becoming light northwest. Winds could gust as high as 20 mph.

    Low: 67 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: A 20 percent chance of showers.  Cloudy, then gradually becoming mostly sunny, with a high near 83. Light west southwest wind becoming west 6 to 11 mph in the morning.

    High: 83 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 60. West wind 6 to 11 mph becoming light  after midnight. Winds could gust as high as 18 mph.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 83. West southwest wind 6 to 14 mph, with gusts as high as 22 mph.

    High: 83 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 58. Southwest wind 5 to 14 mph, with gusts as high as 23 mph.

    Low: 58 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 58.

    Low: 58 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Tonight
A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 67. West wind 5 to 10 mph becoming light northwest. Winds could gust as high as 20 mph.
Friday
A 20 percent chance of showers. Cloudy, then gradually becoming mostly sunny, with a high near 83. Light west southwest wind becoming west 6 to 11 mph in the morning.
Friday Night
Mostly clear, with a low around 60. West wind 6 to 11 mph becoming light after midnight. Winds could gust as high as 18 mph.
Saturday
Sunny, with a high near 83. West southwest wind 6 to 14 mph, with gusts as high as 22 mph.
Saturday Night
Clear, with a low around 58. Southwest wind 5 to 14 mph, with gusts as high as 23 mph.
Sunday
Sunny, with a high near 83.
Sunday Night
Clear, with a low around 58.
Monday
Sunny, with a high near 79.
Monday Night
Mostly clear, with a low around 56.
Tuesday
Sunny, with a high near 78.
Tuesday Night
A slight chance of showers. Mostly clear, with a low around 58.
Wednesday
Sunny, with a high near 81.
Wednesday Night
A slight chance of showers. Mostly clear, with a low around 59.
Thursday
A slight chance of showers. Sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
Bethel Island CA
 38.03°N 121.64°W (Elev. 3 ft)
1:42 pm PDT Aug 27, 2026
6pm PDT Aug 27, 2026-6pm PDT Sep 3, 2026
 
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