National Weather Service Forecast for: 9 Miles NNW Bethel Island CA
Issued by: National Weather Service Sacramento, CA
Updated: 1:21 am PST Feb 2, 2026
 
Overnight

Overnight: Clear, with a low around 42. West wind 3 to 5 mph.
Clear

Monday

Monday: Patchy fog between 7am and 9am.  Otherwise, sunny, with a high near 66. Light and variable wind becoming north northwest around 6 mph in the morning.
Patchy Fog
then Sunny
Monday
Night
Monday Night: Patchy fog after 5am.  Otherwise, increasing clouds, with a low around 39. Calm wind.
Mostly Clear
then Patchy
Fog
Tuesday

Tuesday: Patchy fog before 10am.  Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 65. North wind 3 to 6 mph.
Patchy Fog
then Sunny
Tuesday
Night
Tuesday Night: Mostly clear, with a low around 40. Calm wind.
Mostly Clear

Wednesday

Wednesday: Mostly sunny, with a high near 63.
Mostly Sunny

Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 41.
Partly Cloudy

Thursday

Thursday: Mostly sunny, with a high near 62.
Mostly Sunny

Thursday
Night
Thursday Night: Mostly cloudy, with a low around 44.
Mostly Cloudy

Lo 42 °F Hi 66 °F Lo 39 °F Hi 65 °F Lo 40 °F Hi 63 °F Lo 41 °F Hi 62 °F Lo 44 °F

 

Overnight
 
Clear, with a low around 42. West wind 3 to 5 mph.
Monday
 
Patchy fog between 7am and 9am. Otherwise, sunny, with a high near 66. Light and variable wind becoming north northwest around 6 mph in the morning.
Monday Night
 
Patchy fog after 5am. Otherwise, increasing clouds, with a low around 39. Calm wind.
Tuesday
 
Patchy fog before 10am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 65. North wind 3 to 6 mph.
Tuesday Night
 
Mostly clear, with a low around 40. Calm wind.
Wednesday
 
Mostly sunny, with a high near 63.
Wednesday Night
 
Partly cloudy, with a low around 41.
Thursday
 
Mostly sunny, with a high near 62.
Thursday Night
 
Mostly cloudy, with a low around 44.
Friday
 
Mostly sunny, with a high near 64.
Friday Night
 
Partly cloudy, with a low around 44.
Saturday
 
Mostly sunny, with a high near 63.
Saturday Night
 
Mostly cloudy, with a low around 45.
Sunday
 
A slight chance of rain. Partly sunny, with a high near 63.

 

Forecast from NOAA-NWS for 9 Miles NNW Bethel Island CA.