National Weather Service Forecast for: 3 Miles NNE Lake Forest CA
Issued by: National Weather Service San Diego, CA
Updated: 12:14 pm PDT Apr 6, 2026
 
Tonight

Tonight: Patchy fog after 2am. Otherwise, partly cloudy, with a low around 54. West wind around 5 mph becoming southeast after midnight.
Mostly Clear
then Patchy
Fog
 Tuesday

Tuesday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 77. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Patchy Fog
then Sunny
 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 56. Southwest wind around 5 mph becoming calm in the evening.
Mostly Clear

 Wednesday

Wednesday: Sunny, with a high near 78. Southeast wind 5 to 10 mph becoming southwest in the afternoon.
Sunny

 Wednesday
Night
Wednesday Night: Increasing clouds, with a low around 57. Southwest wind around 5 mph becoming southeast after midnight.
Increasing
Clouds
 Thursday

Thursday: Partly sunny, with a high near 76.
Partly Sunny

 Thursday
Night
Thursday Night: Mostly cloudy, with a low around 56.
Mostly Cloudy

 Friday

Friday: A slight chance of showers after 11am. Mostly sunny, with a high near 74.
Slight Chance
Showers
 Friday
Night
Friday Night: A slight chance of showers and thunderstorms, then a chance of showers after 11pm. Partly cloudy, with a low around 55.
Chance
Showers
Lo 54 °F Hi 77 °F Lo 56 °F Hi 78 °F Lo 57 °F Hi 76 °F Lo 56 °F Hi 74 °F Lo 55 °F

 

Tonight
 
 Patchy fog after 2am. Otherwise, partly cloudy, with a low around 54. West wind around 5 mph becoming southeast after midnight.
Tuesday
 
 Patchy fog before 8am. Otherwise, mostly sunny, with a high near 77. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Tuesday Night
 
 Mostly clear, with a low around 56. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
 
 Sunny, with a high near 78. Southeast wind 5 to 10 mph becoming southwest in the afternoon.
Wednesday Night
 
 Increasing clouds, with a low around 57. Southwest wind around 5 mph becoming southeast after midnight.
Thursday
 
 Partly sunny, with a high near 76.
Thursday Night
 
 Mostly cloudy, with a low around 56.
Friday
 
 A slight chance of showers after 11am. Mostly sunny, with a high near 74.
Friday Night
 
 A slight chance of showers and thunderstorms, then a chance of showers after 11pm. Partly cloudy, with a low around 55.
Saturday
 
 Showers likely, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 68.
Saturday Night
 
 A slight chance of showers. Partly cloudy, with a low around 54.
Sunday
 
 A slight chance of showers. Partly sunny, with a high near 67.
Sunday Night
 
 Mostly cloudy, with a low around 52.
Monday
 
 Partly sunny, with a high near 70.

 

Forecast from NOAA-NWS for 3 Miles NNE Lake Forest CA.