National Weather Service Forecast for: El Cajon CA
Issued by: National Weather Service San Diego, CA
Updated: 11:14 am PDT Mar 19, 2026
 
Today

Today: Sunny, with a high near 96. Calm wind becoming west around 5 mph in the afternoon.
Sunny
 Tonight

Tonight: Clear, with a low around 60. West wind around 5 mph becoming calm.
Clear
 Friday

Friday: Sunny, with a high near 95. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Sunny
 Friday
Night
Friday Night: Mostly clear, with a low around 59. West wind around 5 mph becoming calm in the evening.
Mostly Clear
 Saturday

Saturday: Sunny, with a high near 90. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Sunny
 Saturday
Night
Saturday Night: Partly cloudy, with a low around 55.
Partly Cloudy
 Sunday

Sunday: Mostly sunny, with a high near 87.
Mostly Sunny
 Sunday
Night
Sunday Night: Partly cloudy, with a low around 55.
Partly Cloudy
 Monday

Monday: Sunny, with a high near 87.
Sunny
Hi 96 °F Lo 60 °F Hi 95 °F Lo 59 °F Hi 90 °F Lo 55 °F Hi 87 °F Lo 55 °F Hi 87 °F

Heat Advisory
 

Today
 
 Sunny, with a high near 96. Calm wind becoming west around 5 mph in the afternoon.
Tonight
 
 Clear, with a low around 60. West wind around 5 mph becoming calm.
Friday
 
 Sunny, with a high near 95. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Friday Night
 
 Mostly clear, with a low around 59. West wind around 5 mph becoming calm in the evening.
Saturday
 
 Sunny, with a high near 90. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Saturday Night
 
 Partly cloudy, with a low around 55.
Sunday
 
 Mostly sunny, with a high near 87.
Sunday Night
 
 Partly cloudy, with a low around 55.
Monday
 
 Sunny, with a high near 87.
Monday Night
 
 Mostly clear, with a low around 56.
Tuesday
 
 Sunny, with a high near 88.
Tuesday Night
 
 Mostly clear, with a low around 57.
Wednesday
 
 Sunny, with a high near 89.

 

Forecast from NOAA-NWS for El Cajon CA.