National Weather Service Forecast for: 3 Miles SSW Canyon Lake CA
Issued by: National Weather Service San Diego, CA
Updated: 12:34 am PDT Aug 20, 2026
 
Overnight

Overnight: Clear, with a low around 69. Calm wind becoming north around 5 mph.
Clear
Thursday

Thursday: Mostly sunny, with a high near 104. Light and variable wind becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Mostly Sunny
Thursday
Night
Thursday Night: Mostly clear, with a low around 69. South wind 5 to 10 mph becoming light and variable  in the evening.
Mostly Clear
Friday

Friday: Sunny, with a high near 103. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Sunny
Friday
Night
Friday Night: Mostly clear, with a low around 68. Southeast wind 5 to 10 mph becoming light and variable  in the evening.
Mostly Clear
Saturday

Saturday: Sunny, with a high near 103.
Sunny
Saturday
Night
Saturday Night: Clear, with a low around 69.
Clear
Sunday

Sunday: Sunny, with a high near 102.
Sunny
Sunday
Night
Sunday Night: Clear, with a low around 69.
Clear
Lo 69 °F Hi 104 °F Lo 69 °F Hi 103 °F Lo 68 °F Hi 103 °F Lo 69 °F Hi 102 °F Lo 69 °F

Heat Advisory
 

Overnight
 
Clear, with a low around 69. Calm wind becoming north around 5 mph.
Thursday
 
Mostly sunny, with a high near 104. Light and variable wind becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
 
Mostly clear, with a low around 69. South wind 5 to 10 mph becoming light and variable in the evening.
Friday
 
Sunny, with a high near 103. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Friday Night
 
Mostly clear, with a low around 68. Southeast wind 5 to 10 mph becoming light and variable in the evening.
Saturday
 
Sunny, with a high near 103.
Saturday Night
 
Clear, with a low around 69.
Sunday
 
Sunny, with a high near 102.
Sunday Night
 
Clear, with a low around 69.
Monday
 
Sunny, with a high near 103.
Monday Night
 
Clear, with a low around 69.
Tuesday
 
Sunny, with a high near 104.
Tuesday Night
 
Mostly clear, with a low around 70.
Wednesday
 
Sunny, with a high near 104.

 

Forecast from NOAA-NWS for 3 Miles SSW Canyon Lake CA.