National Weather Service Forecast for: 8 Miles SW Thermalito CA
Issued by: National Weather Service Sacramento, CA
Updated: 1:21 pm PST Feb 1, 2026
 
Overnight

Overnight: Mostly clear, with a low around 40. Light northwest wind.
Mostly Clear
 Monday

Monday: Mostly sunny, with a high near 63. North northwest wind 3 to 5 mph.
Mostly Sunny
 Monday
Night
Monday Night: Partly cloudy, with a low around 41. Calm wind.
Partly Cloudy
 Tuesday

Tuesday: Sunny, with a high near 65. Light northwest wind.
Sunny
 Tuesday
Night
Tuesday Night: Widespread fog, mainly after 5am. Otherwise, mostly clear, with a low around 41. Calm wind.
Fog
 Wednesday

Wednesday: Areas of fog before 10am. Otherwise, sunny, with a high near 64.
Areas Fog
then Sunny
 Wednesday
Night
Wednesday Night: Patchy fog after 9pm. Otherwise, mostly clear, with a low around 42.
Patchy Fog
 Thursday

Thursday: Patchy fog before 9am. Otherwise, sunny, with a high near 63.
Patchy Fog
then Sunny
 Thursday
Night
Thursday Night: Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 44.
Patchy Fog
Lo 40 °F Hi 63 °F Lo 41 °F Hi 65 °F Lo 41 °F Hi 64 °F Lo 42 °F Hi 63 °F Lo 44 °F

 

Overnight
 
 Mostly clear, with a low around 40. Light northwest wind.
Monday
 
 Mostly sunny, with a high near 63. North northwest wind 3 to 5 mph.
Monday Night
 
 Partly cloudy, with a low around 41. Calm wind.
Tuesday
 
 Sunny, with a high near 65. Light northwest wind.
Tuesday Night
 
 Widespread fog, mainly after 5am. Otherwise, mostly clear, with a low around 41. Calm wind.
Wednesday
 
 Areas of fog before 10am. Otherwise, sunny, with a high near 64.
Wednesday Night
 
 Patchy fog after 9pm. Otherwise, mostly clear, with a low around 42.
Thursday
 
 Patchy fog before 9am. Otherwise, sunny, with a high near 63.
Thursday Night
 
 Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 44.
Friday
 
 Areas of fog before 9am. Otherwise, partly sunny, with a high near 63.
Friday Night
 
 Widespread fog. Otherwise, partly cloudy, with a low around 44.
Saturday
 
 Widespread fog. Otherwise, mostly sunny, with a high near 62.
Saturday Night
 
 A slight chance of rain. Partly cloudy, with a low around 45.
Sunday
 
 A chance of rain. Partly sunny, with a high near 60.

 

Forecast from NOAA-NWS for 8 Miles SW Thermalito CA.