National Weather Service Forecast for: Santa Ana CA
Issued by: National Weather Service San Diego, CA
Updated: 11:14 am PDT Mar 19, 2026
 
This
Afternoon
This Afternoon: Sunny, with a high near 92. Southwest wind around 5 mph.
Sunny

Tonight

Tonight: Mostly clear, with a low around 61. Southwest wind around 5 mph becoming calm.
Mostly Clear

Friday

Friday: Sunny, with a high near 91. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Sunny

Friday
Night
Friday Night: Mostly clear, with a low around 58. Southwest wind around 5 mph becoming calm  in the evening.
Mostly Clear

Saturday

Saturday: Mostly sunny, with a high near 84. Light south wind becoming southwest 5 to 10 mph in the afternoon.
Mostly Sunny

Saturday
Night
Saturday Night: Patchy fog after 11pm.  Otherwise, mostly cloudy, with a low around 58.
Patchy Fog

Sunday

Sunday: Patchy fog before 11am.  Otherwise, mostly sunny, with a high near 82.
Patchy Fog
then Mostly
Sunny
Sunday
Night
Sunday Night: Partly cloudy, with a low around 58.
Partly Cloudy

Monday

Monday: Sunny, with a high near 84.
Sunny

Hi 92 °F Lo 61 °F Hi 91 °F Lo 58 °F Hi 84 °F Lo 58 °F Hi 82 °F Lo 58 °F Hi 84 °F

Heat Advisory
 

This Afternoon
 
Sunny, with a high near 92. Southwest wind around 5 mph.
Tonight
 
Mostly clear, with a low around 61. Southwest wind around 5 mph becoming calm.
Friday
 
Sunny, with a high near 91. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Friday Night
 
Mostly clear, with a low around 58. Southwest wind around 5 mph becoming calm in the evening.
Saturday
 
Mostly sunny, with a high near 84. Light south wind becoming southwest 5 to 10 mph in the afternoon.
Saturday Night
 
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 58.
Sunday
 
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 82.
Sunday Night
 
Partly cloudy, with a low around 58.
Monday
 
Sunny, with a high near 84.
Monday Night
 
Partly cloudy, with a low around 59.
Tuesday
 
Mostly sunny, with a high near 84.
Tuesday Night
 
Mostly clear, with a low around 59.
Wednesday
 
Mostly sunny, with a high near 85.

 

Forecast from NOAA-NWS for Santa Ana CA.