National Weather Service Forecast for: 5 Miles SSW Thermalito 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 low around 39. Calm wind.
Dense Fog
 Friday

Friday: Widespread dense fog before 2pm. Otherwise, partly sunny, with a high near 52. Light and variable wind.
Dense Fog
 Friday
Night
Friday Night: Patchy fog after 8pm. Otherwise, partly cloudy, with a low around 41. Calm wind.
Patchy Fog
 Saturday

Saturday: Mostly sunny, with a high near 57. Calm wind.
Mostly Sunny
 Saturday
Night
Saturday Night: Partly cloudy, with a low around 42. 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 43.
Partly Cloudy
 Monday

Monday: Mostly sunny, with a high near 59.
Mostly Sunny
 Monday
Night
Monday Night: Mostly cloudy, with a low around 44.
Mostly Cloudy
Lo 39 °F Hi 52 °F Lo 41 °F Hi 57 °F Lo 42 °F Hi 58 °F Lo 43 °F Hi 59 °F Lo 44 °F

Dense Fog Advisory
 

Overnight
 
 Widespread dense fog. Otherwise, mostly cloudy, with a low around 39. Calm wind.
Friday
 
 Widespread dense fog before 2pm. Otherwise, partly sunny, with a high near 52. Light and variable wind.
Friday Night
 
 Patchy fog after 8pm. Otherwise, partly cloudy, with a low around 41. Calm wind.
Saturday
 
 Mostly sunny, with a high near 57. Calm wind.
Saturday Night
 
 Partly cloudy, with a low around 42. Calm wind.
Sunday
 
 Partly sunny, with a high near 58.
Sunday Night
 
 Partly cloudy, with a low around 43.
Monday
 
 Mostly sunny, with a high near 59.
Monday Night
 
 Mostly 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 62.
Wednesday Night
 
 Partly cloudy, with a low around 46.
Thursday
 
 Mostly sunny, with a high near 62.

 

Forecast from NOAA-NWS for 5 Miles SSW Thermalito CA.