National Weather Service Forecast for: Descanso CA
Issued by: National Weather Service San Diego, CA
Updated: 12:05 pm PDT Jul 12, 2026
 
Tonight

Tonight: Mostly clear, with a low around 65. West wind around 5 mph becoming calm  in the evening.
Mostly Clear

Monday

Monday: A chance of showers and thunderstorms after 11am.  Partly sunny, with a high near 88. Calm wind becoming west around 5 mph in the afternoon.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Chance
Showers then
Chance
T-storms
Monday
Night
Monday Night: Partly cloudy, with a low around 65. West wind around 5 mph becoming calm.
Partly Cloudy

Tuesday

Tuesday: A slight chance of showers and thunderstorms after 11am.  Mostly sunny, with a high near 93. Light and variable wind becoming west 5 to 10 mph in the afternoon.  Chance of precipitation is 20%.
Slight Chance
T-storms

Tuesday
Night
Tuesday Night: Mostly clear, with a low around 69. West wind 5 to 10 mph becoming light and variable  in the evening.
Mostly Clear

Wednesday

Wednesday: Sunny, with a high near 100.
Sunny

Wednesday
Night
Wednesday Night: Mostly clear, with a low around 71.
Mostly Clear

Thursday

Thursday: A chance of showers and thunderstorms after 11am.  Mostly sunny, with a high near 95.
Chance
Showers

Thursday
Night
Thursday Night: A chance of showers before 11pm.  Partly cloudy, with a low around 67.
Chance
Showers then
Mostly Clear
Lo 65 °F Hi 88 °F Lo 65 °F Hi 93 °F Lo 69 °F Hi 100 °F Lo 71 °F Hi 95 °F Lo 67 °F

Extreme Heat Watch
 

Tonight
 
Mostly clear, with a low around 65. West wind around 5 mph becoming calm in the evening.
Monday
 
A chance of showers and thunderstorms after 11am. Partly sunny, with a high near 88. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
 
Partly cloudy, with a low around 65. West wind around 5 mph becoming calm.
Tuesday
 
A slight chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 93. Light and variable wind becoming west 5 to 10 mph in the afternoon. Chance of precipitation is 20%.
Tuesday Night
 
Mostly clear, with a low around 69. West wind 5 to 10 mph becoming light and variable in the evening.
Wednesday
 
Sunny, with a high near 100.
Wednesday Night
 
Mostly clear, with a low around 71.
Thursday
 
A chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 95.
Thursday Night
 
A chance of showers before 11pm. Partly cloudy, with a low around 67.
Friday
 
A chance of showers after 11am. Mostly sunny, with a high near 88.
Friday Night
 
A chance of showers. Partly cloudy, with a low around 64.
Saturday
 
A chance of showers. Mostly sunny, with a high near 85.
Saturday Night
 
Mostly clear, with a low around 63.
Sunday
 
Sunny, with a high near 86.

 

Forecast from NOAA-NWS for Descanso CA.