National Weather Service Forecast for: El Cajon CA
Issued by: National Weather Service San Diego, CA
Updated: 2:58 am PST Dec 22, 2025
 
Today

Today: Areas of fog before 10am. Otherwise, mostly cloudy, with a high near 73. Calm wind becoming west around 5 mph in the afternoon.
Areas Fog
then Partly
Sunny
 Tonight

Tonight: Cloudy, with a low around 50. Calm wind.
Cloudy

 Tuesday

Tuesday: A chance of rain, mainly after 4pm. Cloudy, with a high near 69. South wind 5 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Chance Rain

 Tuesday
Night
Tuesday Night: Rain likely, mainly after 10pm. Cloudy, with a low around 55. Southeast wind 5 to 10 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Rain Likely

 Wednesday

Wednesday: Rain. The rain could be heavy at times. High near 68. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Heavy Rain

 Wednesday
Night
Wednesday Night: Rain and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 53. Chance of precipitation is 100%.
Heavy Rain

 Christmas
Day
Christmas Day: Rain. High near 68. Chance of precipitation is 80%.
Rain

 Thursday
Night
Thursday Night: Showers. Cloudy, with a low around 50.
Showers

 Friday

Friday: Showers. Mostly cloudy, with a high near 65.
Showers
Hi 73 °F Lo 50 °F Hi 69 °F Lo 55 °F Hi 68 °F Lo 53 °F Hi 68 °F Lo 50 °F Hi 65 °F

Flood Watch
Dense Fog Advisory
 

Today
 
 Areas of fog before 10am. Otherwise, mostly cloudy, with a high near 73. Calm wind becoming west around 5 mph in the afternoon.
Tonight
 
 Cloudy, with a low around 50. Calm wind.
Tuesday
 
 A chance of rain, mainly after 4pm. Cloudy, with a high near 69. South wind 5 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
 
 Rain likely, mainly after 10pm. Cloudy, with a low around 55. Southeast wind 5 to 10 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
 
 Rain. The rain could be heavy at times. High near 68. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Wednesday Night
 
 Rain and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 53. Chance of precipitation is 100%.
Christmas Day
 
 Rain. High near 68. Chance of precipitation is 80%.
Thursday Night
 
 Showers. Cloudy, with a low around 50.
Friday
 
 Showers. Mostly cloudy, with a high near 65.
Friday Night
 
 A chance of showers. Mostly cloudy, with a low around 44.
Saturday
 
 A chance of showers. Mostly sunny, with a high near 65.
Saturday Night
 
 A slight chance of showers. Partly cloudy, with a low around 41.
Sunday
 
 A slight chance of showers. Mostly sunny, with a high near 69.

 

Forecast from NOAA-NWS for El Cajon CA.