National Weather Service Forecast for: 8 Miles SW Thermalito CA
Issued by: National Weather Service Sacramento, CA
Updated: 2:00 am PDT Sep 13, 2026
 
Overnight

Overnight: Clear, with a steady temperature around 58. East wind around 5 mph.
Clear
 Sunday

Sunday: Sunny, with a high near 81. Calm wind becoming northwest around 5 mph in the afternoon.
Sunny
 Sunday
Night
Sunday Night: Clear, with a low around 54. Calm wind becoming north northwest 5 to 8 mph after midnight.
Clear
 Monday

Monday: Sunny, with a high near 89. Northwest wind 7 to 10 mph, with gusts as high as 21 mph.
Sunny
 Monday
Night
Monday Night: Clear, with a low around 55. Light and variable wind.
Clear
 Tuesday

Tuesday: Sunny, with a high near 88.
Sunny
 Tuesday
Night
Tuesday Night: Clear, with a low around 57.
Clear
 Wednesday

Wednesday: Sunny, with a high near 87.
Sunny
 Wednesday
Night
Wednesday Night: Clear, with a low around 57.
Clear
Lo 58 °F Hi 81 °F Lo 54 °F Hi 89 °F Lo 55 °F Hi 88 °F Lo 57 °F Hi 87 °F Lo 57 °F

Red Flag Warning
 

Overnight
 
 Clear, with a steady temperature around 58. East wind around 5 mph.
Sunday
 
 Sunny, with a high near 81. Calm wind becoming northwest around 5 mph in the afternoon.
Sunday Night
 
 Clear, with a low around 54. Calm wind becoming north northwest 5 to 8 mph after midnight.
Monday
 
 Sunny, with a high near 89. Northwest wind 7 to 10 mph, with gusts as high as 21 mph.
Monday Night
 
 Clear, with a low around 55. Light and variable wind.
Tuesday
 
 Sunny, with a high near 88.
Tuesday Night
 
 Clear, with a low around 57.
Wednesday
 
 Sunny, with a high near 87.
Wednesday Night
 
 Clear, with a low around 57.
Thursday
 
 Sunny, with a high near 89.
Thursday Night
 
 Clear, with a low around 57.
Friday
 
 Sunny, with a high near 90.
Friday Night
 
 Mostly clear, with a low around 56.
Saturday
 
 Sunny, with a high near 88.

 

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