National Weather Service Forecast for: El Cajon CA
Issued by: National Weather Service San Diego, CA
Updated: 8:40 pm PST Dec 22, 2025
 
Tonight

Tonight: Patchy fog. Otherwise, cloudy, with a low around 50. Calm wind.
Patchy Fog

 Tuesday

Tuesday: A chance of showers after 10am. Patchy fog before 10am. Otherwise, cloudy, with a high near 69. South wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Chance
Showers and
Patchy Fog
 Tuesday
Night
Tuesday Night: Showers likely. Cloudy, with a low around 54. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Showers
Likely
 Wednesday

Wednesday: Showers, with thunderstorms also possible after 10am. Some of the storms could produce heavy rainfall. High near 70. Southeast wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Heavy Rain

 Wednesday
Night
Wednesday Night: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 54. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Heavy Rain

 Christmas
Day
Christmas Day: Showers likely, mainly before 10am. Cloudy, with a high near 68. Chance of precipitation is 70%.
Showers
Likely
 Thursday
Night
Thursday Night: Showers. Low around 50. Chance of precipitation is 80%.
Showers

 Friday

Friday: Showers. Mostly cloudy, with a high near 65.
Showers

 Friday
Night
Friday Night: A chance of showers, mainly before 4am. Mostly cloudy, with a low around 44.
Chance
Showers
Lo 50 °F Hi 69 °F Lo 54 °F Hi 70 °F Lo 54 °F Hi 68 °F Lo 50 °F Hi 65 °F Lo 44 °F

Flood Watch
Wind Advisory
 

Tonight
 
 Patchy fog. Otherwise, cloudy, with a low around 50. Calm wind.
Tuesday
 
 A chance of showers after 10am. Patchy fog before 10am. Otherwise, cloudy, with a high near 69. South wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
 
 Showers likely. Cloudy, with a low around 54. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
 
 Showers, with thunderstorms also possible after 10am. Some of the storms could produce heavy rainfall. High near 70. Southeast wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Wednesday Night
 
 Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 54. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Christmas Day
 
 Showers likely, mainly before 10am. Cloudy, with a high near 68. Chance of precipitation is 70%.
Thursday Night
 
 Showers. Low around 50. Chance of precipitation is 80%.
Friday
 
 Showers. Mostly cloudy, with a high near 65.
Friday Night
 
 A chance of showers, mainly before 4am. Mostly cloudy, with a low around 44.
Saturday
 
 A slight chance of showers before 10am. Mostly sunny, with a high near 63.
Saturday Night
 
 Mostly clear, with a low around 41.
Sunday
 
 Sunny, with a high near 67.
Sunday Night
 
 Mostly clear, with a low around 43.
Monday
 
 A slight chance of showers. Mostly sunny, with a high near 70.

 

Forecast from NOAA-NWS for El Cajon CA.