National Weather Service Forecast for: Lake Forest CA
Issued by: National Weather Service San Diego, CA
Updated: 2:03 am PDT Apr 25, 2025
 
This
Afternoon
This Afternoon: Mostly cloudy, with a high near 63. Light and variable wind becoming southwest 5 to 10 mph.
Mostly Cloudy

 Tonight

Tonight: A slight chance of showers after 11pm. Mostly cloudy, with a low around 50. West wind 5 to 10 mph becoming light and variable after midnight. Chance of precipitation is 20%.
Slight Chance
Showers
 Saturday

Saturday: A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly cloudy, with a high near 62. Light and variable wind becoming south 5 to 10 mph in the afternoon. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Chance
Showers
 Saturday
Night
Saturday Night: A slight chance of showers before 11pm. Cloudy, with a low around 50. West wind 5 to 10 mph becoming light after midnight. Chance of precipitation is 20%.
Slight Chance
Showers then
Cloudy
 Sunday

Sunday: Mostly cloudy, with a high near 65. West wind 5 to 10 mph.
Mostly Cloudy

 Sunday
Night
Sunday Night: Mostly cloudy, with a low around 49.
Mostly Cloudy

 Monday

Monday: Mostly cloudy, then gradually becoming sunny, with a high near 70.
Decreasing
Clouds
 Monday
Night
Monday Night: Mostly clear, with a low around 52.
Mostly Clear

 Tuesday

Tuesday: Sunny, with a high near 75.
Sunny
Hi 63 °F Lo 50 °F Hi 62 °F Lo 50 °F Hi 65 °F Lo 49 °F Hi 70 °F Lo 52 °F Hi 75 °F

 

This Afternoon
 
 Mostly cloudy, with a high near 63. Light and variable wind becoming southwest 5 to 10 mph.
Tonight
 
 A slight chance of showers after 11pm. Mostly cloudy, with a low around 50. West wind 5 to 10 mph becoming light and variable after midnight. Chance of precipitation is 20%.
Saturday
 
 A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly cloudy, with a high near 62. Light and variable wind becoming south 5 to 10 mph in the afternoon. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
 
 A slight chance of showers before 11pm. Cloudy, with a low around 50. West wind 5 to 10 mph becoming light after midnight. Chance of precipitation is 20%.
Sunday
 
 Mostly cloudy, with a high near 65. West wind 5 to 10 mph.
Sunday Night
 
 Mostly cloudy, with a low around 49.
Monday
 
 Mostly cloudy, then gradually becoming sunny, with a high near 70.
Monday Night
 
 Mostly clear, with a low around 52.
Tuesday
 
 Sunny, with a high near 75.
Tuesday Night
 
 Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 54.
Wednesday
 
 Patchy fog. Otherwise, mostly sunny, with a high near 73.
Wednesday Night
 
 Patchy fog. Otherwise, partly cloudy, with a low around 54.
Thursday
 
 Patchy fog. Otherwise, mostly sunny, with a high near 73.

 

Forecast from NOAA-NWS for Lake Forest CA.