| National Weather Service Forecast for:
Bethel Island CA Issued by: National Weather Service San Francisco Bay Area/Monterey, CA |
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| Updated: 1:26 am PDT Jun 30, 2026 | ||||||||||||||||||
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| Overnight |
Clear, with a low around 59. West wind 5 to 7 mph. |
| Tuesday |
Sunny, with a high near 87. Light west wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 21 mph. |
| Tuesday Night |
Clear, with a low around 56. West wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 20 mph. |
| Wednesday |
Sunny, with a high near 84. Light west wind increasing to 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph. |
| Wednesday Night |
Mostly clear, with a low around 55. West wind 6 to 11 mph becoming light west southwest after midnight. Winds could gust as high as 21 mph. |
| Thursday |
Sunny, with a high near 81. |
| Thursday Night |
Clear, with a low around 56. |
| Friday |
Sunny, with a high near 85. |
| Friday Night |
Clear, with a low around 58. |
| Independence Day |
Sunny, with a high near 88. |
| Saturday Night |
Mostly clear, with a low around 58. |
| Sunday |
Mostly sunny, with a high near 84. |
| Sunday Night |
Mostly clear, with a low around 57. |
| Monday |
Sunny, with a high near 84. |
Forecast from NOAA-NWS for Bethel Island CA.
