National Weather Service Forecast for: Fairfield CA
Issued by: National Weather Service Sacramento, CA
Updated: 11:31 am PDT May 4, 2026
 
Today

Today: A 30 percent chance of rain, mainly between 3pm and 5pm. Mostly cloudy, with a high near 66. West southwest wind 7 to 11 mph. New precipitation amounts of less than a tenth of an inch possible.
Chance Rain
 Tonight

Tonight: Rain likely, mainly between 10pm and 5am. Cloudy, with a low around 54. West southwest wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Rain Likely
 Tuesday

Tuesday: Partly sunny, with a high near 67. West southwest wind 6 to 10 mph.
Partly Sunny
 Tuesday
Night
Tuesday Night: Partly cloudy, with a low around 52. West southwest wind 6 to 11 mph, with gusts as high as 18 mph.
Partly Cloudy
 Wednesday

Wednesday: Mostly sunny, with a high near 76. Calm wind becoming west southwest 5 to 7 mph in the afternoon.
Mostly Sunny
 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 52.
Mostly Clear
 Thursday

Thursday: Sunny, with a high near 77.
Sunny
 Thursday
Night
Thursday Night: Mostly clear, with a low around 51.
Mostly Clear
 Friday

Friday: Sunny, with a high near 80.
Sunny
Hi 66 °F Lo 54 °F Hi 67 °F Lo 52 °F Hi 76 °F Lo 52 °F Hi 77 °F Lo 51 °F Hi 80 °F

 

Today
 
 A 30 percent chance of rain, mainly between 3pm and 5pm. Mostly cloudy, with a high near 66. West southwest wind 7 to 11 mph. New precipitation amounts of less than a tenth of an inch possible.
Tonight
 
 Rain likely, mainly between 10pm and 5am. Cloudy, with a low around 54. West southwest wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
 
 Partly sunny, with a high near 67. West southwest wind 6 to 10 mph.
Tuesday Night
 
 Partly cloudy, with a low around 52. West southwest wind 6 to 11 mph, with gusts as high as 18 mph.
Wednesday
 
 Mostly sunny, with a high near 76. Calm wind becoming west southwest 5 to 7 mph in the afternoon.
Wednesday Night
 
 Mostly clear, with a low around 52.
Thursday
 
 Sunny, with a high near 77.
Thursday Night
 
 Mostly clear, with a low around 51.
Friday
 
 Sunny, with a high near 80.
Friday Night
 
 Clear, with a low around 55.
Saturday
 
 Sunny, with a high near 89.
Saturday Night
 
 Clear, with a low around 57.
Sunday
 
 Sunny, with a high near 93.

 

Forecast from NOAA-NWS for Fairfield CA.