National Weather Service Forecast for: Mission Viejo CA
Issued by: National Weather Service San Diego, CA
Updated: 1:04 pm PDT Jun 19, 2026
 
Tonight

Tonight: Increasing clouds, with a low around 57. West wind 5 to 10 mph becoming light northwest in the evening.
Increasing
Clouds
 Saturday

Saturday: Cloudy through mid morning, then gradual clearing, with a high near 75. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Becoming
Sunny
 Saturday
Night
Saturday Night: Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 56. West wind 5 to 10 mph becoming light and variable in the evening.
Patchy Fog
 Sunday

Sunday: Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 77. Calm wind becoming southwest around 5 mph in the afternoon.
Patchy Fog
then Sunny
 Sunday
Night
Sunday Night: Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 57. West wind around 5 mph becoming calm in the evening.
Patchy Fog
 Monday

Monday: Mostly cloudy through mid morning, then gradual clearing, with a high near 78.
Becoming
Sunny
 Monday
Night
Monday Night: Increasing clouds, with a low around 59.
Increasing
Clouds
 Tuesday

Tuesday: Mostly sunny, with a high near 82.
Mostly Sunny
 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 62.
Mostly Clear
Lo 57 °F Hi 75 °F Lo 56 °F Hi 77 °F Lo 57 °F Hi 78 °F Lo 59 °F Hi 82 °F Lo 62 °F

 

Tonight
 
 Increasing clouds, with a low around 57. West wind 5 to 10 mph becoming light northwest in the evening.
Saturday
 
 Cloudy through mid morning, then gradual clearing, with a high near 75. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Saturday Night
 
 Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 56. West wind 5 to 10 mph becoming light and variable in the evening.
Sunday
 
 Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 77. Calm wind becoming southwest around 5 mph in the afternoon.
Sunday Night
 
 Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 57. West wind around 5 mph becoming calm in the evening.
Monday
 
 Mostly cloudy through mid morning, then gradual clearing, with a high near 78.
Monday Night
 
 Increasing clouds, with a low around 59.
Tuesday
 
 Mostly sunny, with a high near 82.
Tuesday Night
 
 Mostly clear, with a low around 62.
Wednesday
 
 Mostly sunny, with a high near 84.
Wednesday Night
 
 Mostly clear, with a low around 63.
Thursday
 
 Partly sunny, then gradually becoming sunny, with a high near 85.
Thursday Night
 
 Increasing clouds, with a low around 61.
Friday
 
 Partly sunny, then gradually becoming sunny, with a high near 80.

 

Forecast from NOAA-NWS for Mission Viejo CA.