National Weather Service Forecast for: Rancho San Diego CA
Issued by: National Weather Service San Diego, CA
Updated: 1:04 pm PDT Jun 19, 2026
 
Tonight

Tonight: Increasing clouds, with a low around 56. Northwest wind 5 to 10 mph.
Increasing
Clouds
Saturday

Saturday: Mostly cloudy through mid morning, then gradual clearing, with a high near 76. Light north wind becoming west 5 to 10 mph in the morning.
Becoming
Sunny
Saturday
Night
Saturday Night: Patchy fog after 11pm.  Otherwise, partly cloudy, with a low around 55. West wind 5 to 10 mph becoming light and variable  in the evening.
Patchy Fog
Sunday

Sunday: Patchy fog before 11am.  Otherwise, partly sunny, then gradually becoming sunny, with a high near 77. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Patchy Fog
then Sunny
Sunday
Night
Sunday Night: Mostly clear, with a low around 57. West wind 5 to 10 mph becoming light and variable  in the evening.
Mostly Clear
Monday

Monday: Patchy fog before 11am.  Otherwise, mostly sunny, with a high near 78.
Patchy Fog
then Sunny
Monday
Night
Monday Night: Mostly clear, with a low around 59.
Mostly Clear
Tuesday

Tuesday: Sunny, with a high near 84.
Sunny
Tuesday
Night
Tuesday Night: Mostly clear, with a low around 63.
Mostly Clear
Lo 56 °F Hi 76 °F Lo 55 °F Hi 77 °F Lo 57 °F Hi 78 °F Lo 59 °F Hi 84 °F Lo 63 °F

 

Tonight
 
Increasing clouds, with a low around 56. Northwest wind 5 to 10 mph.
Saturday
 
Mostly cloudy through mid morning, then gradual clearing, with a high near 76. Light north wind becoming west 5 to 10 mph in the morning.
Saturday Night
 
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 55. West wind 5 to 10 mph becoming light and variable in the evening.
Sunday
 
Patchy fog before 11am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 77. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Sunday Night
 
Mostly clear, with a low around 57. West wind 5 to 10 mph becoming light and variable in the evening.
Monday
 
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 78.
Monday Night
 
Mostly clear, with a low around 59.
Tuesday
 
Sunny, with a high near 84.
Tuesday Night
 
Mostly clear, with a low around 63.
Wednesday
 
Sunny, with a high near 86.
Wednesday Night
 
Mostly clear, with a low around 64.
Thursday
 
Mostly sunny, with a high near 87.
Thursday Night
 
Mostly clear, with a low around 63.
Friday
 
Mostly sunny, with a high near 84.

 

Forecast from NOAA-NWS for Rancho San Diego CA.