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

Tonight: Partly cloudy, with a low around 66. South wind around 5 mph becoming calm  in the evening.
Partly Cloudy

Monday

Monday: Mostly sunny, with a high near 96. Calm wind becoming south around 5 mph in the afternoon.
Mostly Sunny

Monday
Night
Monday Night: Partly cloudy, with a low around 66. South wind around 5 mph becoming calm  in the evening.
Partly Cloudy

Tuesday

Tuesday: Sunny, with a high near 103. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Sunny

Tuesday
Night
Tuesday Night: Mostly clear, with a low around 70. Southwest wind around 5 mph becoming calm  in the evening.
Mostly Clear

Wednesday

Wednesday: Sunny, with a high near 109.
Sunny

Wednesday
Night
Wednesday Night: Mostly clear, with a low around 73.
Mostly Clear

Thursday

Thursday: A chance of showers after 11am.  Mostly sunny, with a high near 102.
Chance
Showers
Thursday
Night
Thursday Night: A slight chance of showers before 11pm.  Mostly clear, with a low around 69.
Slight Chance
Showers then
Mostly Clear
Lo 66 °F Hi 96 °F Lo 66 °F Hi 103 °F Lo 70 °F Hi 109 °F Lo 73 °F Hi 102 °F Lo 69 °F

Extreme Heat Watch
 

Tonight
 
Partly cloudy, with a low around 66. South wind around 5 mph becoming calm in the evening.
Monday
 
Mostly sunny, with a high near 96. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
 
Partly cloudy, with a low around 66. South wind around 5 mph becoming calm in the evening.
Tuesday
 
Sunny, with a high near 103. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Tuesday Night
 
Mostly clear, with a low around 70. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
 
Sunny, with a high near 109.
Wednesday Night
 
Mostly clear, with a low around 73.
Thursday
 
A chance of showers after 11am. Mostly sunny, with a high near 102.
Thursday Night
 
A slight chance of showers before 11pm. Mostly clear, with a low around 69.
Friday
 
A chance of showers after 11am. Mostly sunny, with a high near 96.
Friday Night
 
A slight chance of showers. Partly cloudy, with a low around 67.
Saturday
 
A slight chance of showers. Mostly sunny, with a high near 95.
Saturday Night
 
A slight chance of showers. Mostly clear, with a low around 66.
Sunday
 
Sunny, with a high near 94.

 

Forecast from NOAA-NWS for Canyon Lake CA.