National Weather Service Forecast for: Rancho San Diego CA
Issued by: National Weather Service San Diego, CA
Updated: 7:55 pm PST Dec 4, 2025
 
Overnight

Overnight: Mostly clear, with a low around 45. East wind around 5 mph.
Mostly Clear
 Friday

Friday: Sunny, with a high near 72. Calm wind becoming west around 5 mph in the afternoon.
Sunny
 Friday
Night
Friday Night: Clear, with a low around 47. East wind around 5 mph.
Clear
 Saturday

Saturday: Sunny, with a high near 72. Calm wind becoming west around 5 mph in the afternoon.
Sunny
 Saturday
Night
Saturday Night: Mostly clear, with a low around 48. Calm wind becoming east around 5 mph.
Mostly Clear
 Sunday

Sunday: Sunny, with a high near 75.
Sunny
 Sunday
Night
Sunday Night: Mostly clear, with a low around 50.
Mostly Clear
 Monday

Monday: Sunny, with a high near 80.
Sunny
 Monday
Night
Monday Night: Mostly clear, with a low around 54.
Mostly Clear
Lo 45 °F Hi 72 °F Lo 47 °F Hi 72 °F Lo 48 °F Hi 75 °F Lo 50 °F Hi 80 °F Lo 54 °F

 

Overnight
 
 Mostly clear, with a low around 45. East wind around 5 mph.
Friday
 
 Sunny, with a high near 72. Calm wind becoming west around 5 mph in the afternoon.
Friday Night
 
 Clear, with a low around 47. East wind around 5 mph.
Saturday
 
 Sunny, with a high near 72. Calm wind becoming west around 5 mph in the afternoon.
Saturday Night
 
 Mostly clear, with a low around 48. Calm wind becoming east around 5 mph.
Sunday
 
 Sunny, with a high near 75.
Sunday Night
 
 Mostly clear, with a low around 50.
Monday
 
 Sunny, with a high near 80.
Monday Night
 
 Mostly clear, with a low around 54.
Tuesday
 
 Sunny, with a high near 83.
Tuesday Night
 
 Mostly clear, with a low around 54.
Wednesday
 
 Sunny, with a high near 81.
Wednesday Night
 
 Mostly clear, with a low around 54.
Thursday
 
 Sunny, with a high near 80.

 

Forecast from NOAA-NWS for Rancho San Diego CA.