National Weather Service Forecast for: 3 Miles NNE Lake Forest CA
Issued by: National Weather Service San Diego, CA
Updated: 12:29 am PDT Jun 22, 2026
 
Overnight

Overnight: Patchy fog. Otherwise, mostly cloudy, with a low around 58. Calm wind.
Patchy Fog

 Monday

Monday: Patchy fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 78. Light northwest wind becoming west 5 to 10 mph in the afternoon.
Patchy Fog
then Sunny
 Monday
Night
Monday Night: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 59. West wind around 5 mph becoming calm in the evening.
Patchy Fog

 Tuesday

Tuesday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 83. Calm wind becoming west around 5 mph in the morning.
Patchy Fog
then Sunny
 Tuesday
Night
Tuesday Night: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 63. West wind around 5 mph becoming calm.
Patchy Fog

 Wednesday

Wednesday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 84.
Patchy Fog
then Mostly
Sunny
 Wednesday
Night
Wednesday Night: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 61.
Patchy Fog

 Thursday

Thursday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 82.
Patchy Fog
then Sunny
 Thursday
Night
Thursday Night: Partly cloudy, with a low around 59.
Partly Cloudy
Lo 58 °F Hi 78 °F Lo 59 °F Hi 83 °F Lo 63 °F Hi 84 °F Lo 61 °F Hi 82 °F Lo 59 °F

Air Quality Alert
 

Overnight
 
 Patchy fog. Otherwise, mostly cloudy, with a low around 58. Calm wind.
Monday
 
 Patchy fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 78. Light northwest wind becoming west 5 to 10 mph in the afternoon.
Monday Night
 
 Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 59. West wind around 5 mph becoming calm in the evening.
Tuesday
 
 Patchy fog before 11am. Otherwise, mostly sunny, with a high near 83. Calm wind becoming west around 5 mph in the morning.
Tuesday Night
 
 Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 63. West wind around 5 mph becoming calm.
Wednesday
 
 Patchy fog before 11am. Otherwise, mostly sunny, with a high near 84.
Wednesday Night
 
 Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 61.
Thursday
 
 Patchy fog before 11am. Otherwise, mostly sunny, with a high near 82.
Thursday Night
 
 Partly cloudy, with a low around 59.
Friday
 
 Partly sunny, then gradually becoming sunny, with a high near 82.
Friday Night
 
 Increasing clouds, with a low around 59.
Saturday
 
 Mostly sunny, with a high near 81.
Saturday Night
 
 Increasing clouds, with a low around 59.
Sunday
 
 Mostly cloudy, then gradually becoming sunny, with a high near 74.

 

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