National Weather Service Forecast for: Lake Forest CA
Issued by: National Weather Service San Diego, CA
Updated: 1:20 pm PDT Jun 13, 2025
 
Tonight

Tonight: Patchy fog after 11pm.  Otherwise, mostly cloudy, with a low around 60. South wind around 5 mph becoming calm.
Patchy Fog
Saturday

Saturday: Mostly sunny, with a high near 83. Light southwest wind becoming west 5 to 10 mph in the afternoon.
Mostly Sunny
Saturday
Night
Saturday Night: Partly cloudy, with a low around 62. West wind around 5 mph becoming calm  in the evening.
Partly Cloudy
Sunday

Sunday: Mostly sunny, with a high near 88. Calm wind becoming west around 5 mph in the afternoon.
Mostly Sunny
Sunday
Night
Sunday Night: Partly cloudy, with a low around 63. West wind around 5 mph becoming calm  in the evening.
Partly Cloudy
Monday

Monday: Patchy fog before 11am.  Otherwise, mostly sunny, with a high near 85.
Patchy Fog
then Sunny
Monday
Night
Monday Night: Partly cloudy, with a low around 63.
Partly Cloudy
Tuesday

Tuesday: Mostly sunny, with a high near 84.
Mostly Sunny
Tuesday
Night
Tuesday Night: Partly cloudy, with a low around 63.
Partly Cloudy
Lo 60 °F Hi 83 °F Lo 62 °F Hi 88 °F Lo 63 °F Hi 85 °F Lo 63 °F Hi 84 °F Lo 63 °F

 

Tonight
 
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 60. South wind around 5 mph becoming calm.
Saturday
 
Mostly sunny, with a high near 83. Light southwest wind becoming west 5 to 10 mph in the afternoon.
Saturday Night
 
Partly cloudy, with a low around 62. West wind around 5 mph becoming calm in the evening.
Sunday
 
Mostly sunny, with a high near 88. Calm wind becoming west around 5 mph in the afternoon.
Sunday Night
 
Partly cloudy, with a low around 63. West wind around 5 mph becoming calm in the evening.
Monday
 
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 85.
Monday Night
 
Partly cloudy, with a low around 63.
Tuesday
 
Mostly sunny, with a high near 84.
Tuesday Night
 
Partly cloudy, with a low around 63.
Wednesday
 
Mostly sunny, with a high near 83.
Wednesday Night
 
Partly cloudy, with a low around 63.
Juneteenth
 
Mostly sunny, with a high near 83.
Thursday Night
 
Partly cloudy, with a low around 63.
Friday
 
Mostly sunny, with a high near 82.

 

Forecast from NOAA-NWS for Lake Forest CA.