National Weather Service Forecast for: 3 Miles E El Cajon CA
Issued by: National Weather Service San Diego, CA
Updated: 12:34 am PDT Aug 20, 2026
 
Overnight

Overnight: Patchy fog after 5am.  Otherwise, partly cloudy, with a low around 66. Calm wind.
Patchy Fog

Thursday

Thursday: Patchy fog before 8am.  Otherwise, mostly sunny, with a high near 91. Light southwest wind increasing to 5 to 10 mph in the morning.
Patchy Fog
then Mostly
Sunny
Thursday
Night
Thursday Night: Mostly clear, with a low around 66. West wind around 5 mph becoming calm  in the evening.
Mostly Clear

Friday

Friday: Sunny, with a high near 91. Light west wind increasing to 5 to 10 mph in the morning.
Sunny

Friday
Night
Friday Night: Mostly clear, with a low around 66. Southwest wind around 5 mph becoming calm  in the evening.
Mostly Clear

Saturday

Saturday: Sunny, with a high near 92.
Sunny

Saturday
Night
Saturday Night: Mostly clear, with a low around 67.
Mostly Clear

Sunday

Sunday: Sunny, with a high near 93.
Sunny

Sunday
Night
Sunday Night: Mostly clear, with a low around 67.
Mostly Clear

Lo 66 °F Hi 91 °F Lo 66 °F Hi 91 °F Lo 66 °F Hi 92 °F Lo 67 °F Hi 93 °F Lo 67 °F

 

Overnight
 
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 66. Calm wind.
Thursday
 
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 91. Light southwest wind increasing to 5 to 10 mph in the morning.
Thursday Night
 
Mostly clear, with a low around 66. West wind around 5 mph becoming calm in the evening.
Friday
 
Sunny, with a high near 91. Light west wind increasing to 5 to 10 mph in the morning.
Friday Night
 
Mostly clear, with a low around 66. Southwest wind around 5 mph becoming calm in the evening.
Saturday
 
Sunny, with a high near 92.
Saturday Night
 
Mostly clear, with a low around 67.
Sunday
 
Sunny, with a high near 93.
Sunday Night
 
Mostly clear, with a low around 67.
Monday
 
Sunny, with a high near 93.
Monday Night
 
Mostly clear, with a low around 68.
Tuesday
 
Sunny, with a high near 94.
Tuesday Night
 
Mostly clear, with a low around 69.
Wednesday
 
Sunny, with a high near 95.

 

Forecast from NOAA-NWS for 3 Miles E El Cajon CA.