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

Overnight: Clear, with a low around 70. Calm wind.
Clear
 Thursday

Thursday: Mostly sunny, with a high near 105. 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. Southwest wind around 5 mph becoming calm in the evening.
Mostly Clear
 Friday

Friday: Sunny, with a high near 104. Calm wind becoming southwest around 5 mph.
Sunny
 Friday
Night
Friday Night: Mostly clear, with a low around 70. East wind around 5 mph becoming calm in the evening.
Mostly Clear
 Saturday

Saturday: Sunny, with a high near 104.
Sunny
 Saturday
Night
Saturday Night: Clear, with a low around 70.
Clear
 Sunday

Sunday: Sunny, with a high near 103.
Sunny
 Sunday
Night
Sunday Night: Clear, with a low around 70.
Clear
Lo 70 °F Hi 105 °F Lo 69 °F Hi 104 °F Lo 70 °F Hi 104 °F Lo 70 °F Hi 103 °F Lo 70 °F

Heat Advisory
 

Overnight
 
 Clear, with a low around 70. Calm wind.
Thursday
 
 Mostly sunny, with a high near 105. 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. Southwest wind around 5 mph becoming calm in the evening.
Friday
 
 Sunny, with a high near 104. Calm wind becoming southwest around 5 mph.
Friday Night
 
 Mostly clear, with a low around 70. East wind around 5 mph becoming calm in the evening.
Saturday
 
 Sunny, with a high near 104.
Saturday Night
 
 Clear, with a low around 70.
Sunday
 
 Sunny, with a high near 103.
Sunday Night
 
 Clear, with a low around 70.
Monday
 
 Sunny, with a high near 103.
Monday Night
 
 Clear, with a low around 70.
Tuesday
 
 Sunny, with a high near 104.
Tuesday Night
 
 Mostly clear, with a low around 71.
Wednesday
 
 Sunny, with a high near 104.

 

Forecast from NOAA-NWS for Lake Elsinore CA.