National Weather Service Forecast for: 9 Miles NNW Bethel Island CA
Issued by: National Weather Service Sacramento, CA
Updated: 1:20 am PST Dec 5, 2025
 
Overnight

Overnight: Widespread dense fog.  Otherwise, mostly cloudy, with a steady temperature around 42. Calm wind.
Dense Fog

Friday

Friday: Widespread dense fog, mainly before 7am.  Otherwise, partly sunny, with a high near 53. Light and variable wind.
Dense Fog
then Mostly
Sunny
Friday
Night
Friday Night: Patchy fog after 9pm.  Otherwise, partly cloudy, with a low around 41. Light and variable wind.
Patchy Fog

Saturday

Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 57. Light north wind.
Decreasing
Clouds
Saturday
Night
Saturday Night: Partly cloudy, with a low around 44. Calm wind.
Partly Cloudy

Sunday

Sunday: Partly sunny, with a high near 58.
Partly Sunny

Sunday
Night
Sunday Night: Partly cloudy, with a low around 44.
Partly Cloudy

Monday

Monday: Mostly sunny, with a high near 59.
Mostly Sunny

Monday
Night
Monday Night: Partly cloudy, with a low around 44.
Partly Cloudy

Lo 42 °F Hi 53 °F Lo 41 °F Hi 57 °F Lo 44 °F Hi 58 °F Lo 44 °F Hi 59 °F Lo 44 °F

Dense Fog Advisory
 

Overnight
 
Widespread dense fog. Otherwise, mostly cloudy, with a steady temperature around 42. Calm wind.
Friday
 
Widespread dense fog, mainly before 7am. Otherwise, partly sunny, with a high near 53. Light and variable wind.
Friday Night
 
Patchy fog after 9pm. Otherwise, partly cloudy, with a low around 41. Light and variable wind.
Saturday
 
Mostly cloudy, then gradually becoming sunny, with a high near 57. Light north wind.
Saturday Night
 
Partly cloudy, with a low around 44. Calm wind.
Sunday
 
Partly sunny, with a high near 58.
Sunday Night
 
Partly cloudy, with a low around 44.
Monday
 
Mostly sunny, with a high near 59.
Monday Night
 
Partly cloudy, with a low around 44.
Tuesday
 
Partly sunny, with a high near 59.
Tuesday Night
 
Mostly cloudy, with a low around 46.
Wednesday
 
Partly sunny, with a high near 61.
Wednesday Night
 
Partly cloudy, with a low around 46.
Thursday
 
Partly sunny, with a high near 60.

 

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