Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

56°F

13°C

Humidity 27%
Wind Speed NE 3 MPH
Barometer NA
Dewpoint 22°F (-6°C)
Visibility NA
Last update 18 Apr 06:28 AM PDT
Extended Forecast for

2 Miles WSW Bethel Island CA

  • Today

    Today: Sunny, with a high near 75. Light and variable wind.

    High: 75 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 56. West wind around 6 mph.

    Low: 56 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 74. West wind 5 to 8 mph.

    High: 74 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 51. West wind 5 to 13 mph, with gusts as high as 21 mph.

    Low: 51 °F

    Partly Cloudy

  • Monday

    Monday: A 30 percent chance of showers, mainly after 11am.  Mostly sunny, with a high near 72. Southwest wind 5 to 9 mph.  New precipitation amounts of less than a tenth of an inch possible.

    High: 72 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Showers, mainly after 11pm.  Low around 56. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 56 °F

    Showers

  • Tuesday

    Tuesday: Showers, with thunderstorms also possible after 11am.  High near 62. Chance of precipitation is 90%.

    High: 62 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 11pm, then a chance of rain after 11pm.  Mostly cloudy, with a low around 52.

    Low: 52 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of rain.  Mostly sunny, with a high near 63.

    High: 63 °F

    Chance Rain

Detailed Forecast

Today
Sunny, with a high near 75. Light and variable wind.
Tonight
Mostly cloudy, with a low around 56. West wind around 6 mph.
Sunday
Partly sunny, with a high near 74. West wind 5 to 8 mph.
Sunday Night
Partly cloudy, with a low around 51. West wind 5 to 13 mph, with gusts as high as 21 mph.
Monday
A 30 percent chance of showers, mainly after 11am. Mostly sunny, with a high near 72. Southwest wind 5 to 9 mph. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Showers, mainly after 11pm. Low around 56. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
Showers, with thunderstorms also possible after 11am. High near 62. Chance of precipitation is 90%.
Tuesday Night
Showers likely and possibly a thunderstorm before 11pm, then a chance of rain after 11pm. Mostly cloudy, with a low around 52.
Wednesday
A chance of rain. Mostly sunny, with a high near 63.
Wednesday Night
Mostly clear, with a low around 50.
Thursday
Mostly sunny, with a high near 67.
Thursday Night
Mostly clear, with a low around 50.
Friday
Sunny, with a high near 70.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Bethel Island CA
 38.02°N 121.7°W (Elev. 3 ft)
1:41 am PDT Apr 18, 2026
7am PDT Apr 18, 2026-6pm PDT Apr 24, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database