National Weather Service Forecast for: Santa Ana CA
Issued by: National Weather Service San Diego, CA
Updated: 1:04 am PST Feb 2, 2026
 
Overnight

Overnight: Partly cloudy, with a low around 52. Calm wind.
Partly Cloudy
Monday

Monday: Mostly sunny, with a high near 76. Calm wind becoming southwest around 5 mph in the afternoon.
Mostly Sunny
Monday
Night
Monday Night: Patchy fog.  Otherwise, partly cloudy, with a low around 51. Calm wind.
Patchy Fog
Tuesday

Tuesday: Patchy fog before 10am.  Otherwise, sunny, with a high near 81. Calm wind becoming west around 5 mph in the afternoon.
Patchy Fog
then Sunny
Tuesday
Night
Tuesday Night: Clear, with a low around 56. North wind around 5 mph becoming calm  in the evening.
Clear
Wednesday

Wednesday: Sunny, with a high near 88.
Sunny
Wednesday
Night
Wednesday Night: Mostly clear, with a low around 58.
Mostly Clear
Thursday

Thursday: Mostly sunny, with a high near 83.
Mostly Sunny
Thursday
Night
Thursday Night: Mostly cloudy, with a low around 56.
Mostly Cloudy
Lo 52 °F Hi 76 °F Lo 51 °F Hi 81 °F Lo 56 °F Hi 88 °F Lo 58 °F Hi 83 °F Lo 56 °F

Air Quality Alert
 

Overnight
 
Partly cloudy, with a low around 52. Calm wind.
Monday
 
Mostly sunny, with a high near 76. Calm wind becoming southwest around 5 mph in the afternoon.
Monday Night
 
Patchy fog. Otherwise, partly cloudy, with a low around 51. Calm wind.
Tuesday
 
Patchy fog before 10am. Otherwise, sunny, with a high near 81. Calm wind becoming west around 5 mph in the afternoon.
Tuesday Night
 
Clear, with a low around 56. North wind around 5 mph becoming calm in the evening.
Wednesday
 
Sunny, with a high near 88.
Wednesday Night
 
Mostly clear, with a low around 58.
Thursday
 
Mostly sunny, with a high near 83.
Thursday Night
 
Mostly cloudy, with a low around 56.
Friday
 
Partly sunny, with a high near 75.
Friday Night
 
Partly cloudy, with a low around 53.
Saturday
 
Sunny, with a high near 76.
Saturday Night
 
Mostly clear, with a low around 52.
Sunday
 
Sunny, with a high near 79.

 

Forecast from NOAA-NWS for Santa Ana CA.