National Weather Service Forecast for: 3 Miles NNE San Juan Capistrano CA
Issued by: National Weather Service San Diego, CA
Updated: 2:58 am PST Dec 17, 2025
 
Overnight

Overnight: Areas of fog. Otherwise, mostly cloudy, with a low around 52. Calm wind.
Areas Fog

 Wednesday

Wednesday: Areas of fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 71. Calm wind becoming west around 5 mph in the afternoon.
Areas Fog
then Sunny
 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 53. Southeast wind around 5 mph becoming northeast after midnight.
Mostly Clear

 Thursday

Thursday: Patchy fog before 10am. Otherwise, sunny, with a high near 79. Calm wind becoming west around 5 mph in the afternoon.
Patchy Fog
then Sunny
 Thursday
Night
Thursday Night: Mostly clear, with a low around 56. Southeast wind around 5 mph becoming calm in the evening.
Mostly Clear

 Friday

Friday: Sunny, with a high near 74.
Sunny

 Friday
Night
Friday Night: Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 52.
Patchy Fog

 Saturday

Saturday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 70.
Patchy Fog
then Mostly
Sunny
 Saturday
Night
Saturday Night: Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 53.
Patchy Fog
Lo 52 °F Hi 71 °F Lo 53 °F Hi 79 °F Lo 56 °F Hi 74 °F Lo 52 °F Hi 70 °F Lo 53 °F

Air Quality Alert
Dense Fog Advisory
 

Overnight
 
 Areas of fog. Otherwise, mostly cloudy, with a low around 52. Calm wind.
Wednesday
 
 Areas of fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 71. Calm wind becoming west around 5 mph in the afternoon.
Wednesday Night
 
 Mostly clear, with a low around 53. Southeast wind around 5 mph becoming northeast after midnight.
Thursday
 
 Patchy fog before 10am. Otherwise, sunny, with a high near 79. Calm wind becoming west around 5 mph in the afternoon.
Thursday Night
 
 Mostly clear, with a low around 56. Southeast wind around 5 mph becoming calm in the evening.
Friday
 
 Sunny, with a high near 74.
Friday Night
 
 Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 52.
Saturday
 
 Patchy fog before 10am. Otherwise, mostly sunny, with a high near 70.
Saturday Night
 
 Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 53.
Sunday
 
 Patchy fog before 10am. Otherwise, partly sunny, with a high near 70.
Sunday Night
 
 Patchy fog. Otherwise, mostly cloudy, with a low around 53.
Monday
 
 Patchy fog. Otherwise, partly sunny, with a high near 70.
Monday Night
 
 Mostly cloudy, with a low around 52.
Tuesday
 
 A slight chance of showers. Mostly cloudy, with a high near 68.

 

Forecast from NOAA-NWS for 3 Miles NNE San Juan Capistrano CA.