National Weather Service Forecast for: Bethel Island CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 2:02 pm PDT Jun 19, 2025
 
Tonight

Tonight: Clear, with a low around 53. West southwest wind 13 to 20 mph, with gusts as high as 30 mph.
Clear

 Friday

Friday: Sunny, with a high near 76. West wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 29 mph.
Sunny

 Friday
Night
Friday Night: Clear, with a low around 53. Breezy, with a west wind 14 to 22 mph, with gusts as high as 33 mph.
Clear and
Breezy then
Clear
 Saturday

Saturday: Sunny, with a high near 79. Northwest wind 11 to 16 mph, with gusts as high as 24 mph.
Sunny

 Saturday
Night
Saturday Night: Clear, with a low around 58. West northwest wind 11 to 15 mph, with gusts as high as 28 mph.
Clear

 Sunday

Sunday: Sunny, with a high near 83.
Sunny

 Sunday
Night
Sunday Night: Clear, with a low around 54.
Clear

 Monday

Monday: Sunny, with a high near 87.
Sunny

 Monday
Night
Monday Night: Partly cloudy, with a low around 55.
Partly Cloudy
Lo 53 °F Hi 76 °F Lo 53 °F Hi 79 °F Lo 58 °F Hi 83 °F Lo 54 °F Hi 87 °F Lo 55 °F

 

Tonight
 
 Clear, with a low around 53. West southwest wind 13 to 20 mph, with gusts as high as 30 mph.
Friday
 
 Sunny, with a high near 76. West wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 29 mph.
Friday Night
 
 Clear, with a low around 53. Breezy, with a west wind 14 to 22 mph, with gusts as high as 33 mph.
Saturday
 
 Sunny, with a high near 79. Northwest wind 11 to 16 mph, with gusts as high as 24 mph.
Saturday Night
 
 Clear, with a low around 58. West northwest wind 11 to 15 mph, with gusts as high as 28 mph.
Sunday
 
 Sunny, with a high near 83.
Sunday Night
 
 Clear, with a low around 54.
Monday
 
 Sunny, with a high near 87.
Monday Night
 
 Partly cloudy, with a low around 55.
Tuesday
 
 Sunny, with a high near 85.
Tuesday Night
 
 Clear, with a low around 56.
Wednesday
 
 Sunny, with a high near 87.
Wednesday Night
 
 Clear, with a low around 57.
Thursday
 
 Sunny, with a high near 90.

 

Forecast from NOAA-NWS for Bethel Island CA.