National Weather Service Forecast for: 2 Miles NNE Rancho Santa Margarita CA
Issued by: National Weather Service San Diego, CA
Updated: 12:56 pm PST Dec 17, 2025
 
Tonight

Tonight: Mostly clear, with a low around 56. North wind around 5 mph becoming calm.
Mostly Clear
Thursday

Thursday: Sunny, with a high near 80. North wind around 5 mph becoming calm  in the morning.
Sunny
Thursday
Night
Thursday Night: Mostly clear, with a low around 58. Calm wind.
Mostly Clear
Friday

Friday: Sunny, with a high near 77. Calm wind becoming southwest around 5 mph.
Sunny
Friday
Night
Friday Night: Mostly clear, with a low around 53. Calm wind.
Mostly Clear
Saturday

Saturday: Mostly sunny, with a high near 72.
Mostly Sunny
Saturday
Night
Saturday Night: Partly cloudy, with a low around 54.
Partly Cloudy
Sunday

Sunday: Partly sunny, with a high near 73.
Partly Sunny
Sunday
Night
Sunday Night: Patchy fog after 10pm.  Otherwise, partly cloudy, with a low around 53.
Patchy Fog
Lo 56 °F Hi 80 °F Lo 58 °F Hi 77 °F Lo 53 °F Hi 72 °F Lo 54 °F Hi 73 °F Lo 53 °F

Air Quality Alert
 

Tonight
 
Mostly clear, with a low around 56. North wind around 5 mph becoming calm.
Thursday
 
Sunny, with a high near 80. North wind around 5 mph becoming calm in the morning.
Thursday Night
 
Mostly clear, with a low around 58. Calm wind.
Friday
 
Sunny, with a high near 77. Calm wind becoming southwest around 5 mph.
Friday Night
 
Mostly clear, with a low around 53. Calm wind.
Saturday
 
Mostly sunny, with a high near 72.
Saturday Night
 
Partly cloudy, with a low around 54.
Sunday
 
Partly sunny, with a high near 73.
Sunday Night
 
Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 53.
Monday
 
Patchy fog before 10am. Otherwise, partly sunny, with a high near 72.
Monday Night
 
Mostly cloudy, with a low around 52.
Tuesday
 
A slight chance of showers. Partly sunny, with a high near 68.
Tuesday Night
 
A chance of showers. Mostly cloudy, with a low around 54.
Wednesday
 
Showers likely. Mostly cloudy, with a high near 67.

 

Forecast from NOAA-NWS for 2 Miles NNE Rancho Santa Margarita CA.