National Weather Service Forecast for: 3 Miles NNW Los Alamitos CA
Issued by: National Weather Service Los Angeles/Oxnard, CA
Updated: 2:28 pm PDT Mar 19, 2026
 
Tonight

Tonight: Partly cloudy, with a low around 58. West southwest wind 5 to 10 mph becoming light and variable  in the evening.
Partly Cloudy
Friday

Friday: Sunny, with a high near 89. Light and variable wind becoming south southwest 5 to 10 mph in the afternoon.
Sunny
Friday
Night
Friday Night: Increasing clouds, with a low around 57. West wind 5 to 10 mph becoming light and variable  after midnight.
Increasing
Clouds
Saturday

Saturday: Partly sunny, then gradually becoming sunny, with a high near 84. Light and variable wind becoming west southwest 5 to 10 mph in the morning.
Becoming
Sunny
Saturday
Night
Saturday Night: Mostly cloudy, with a low around 55. Southwest wind around 5 mph becoming calm  in the evening.
Mostly Cloudy
Sunday

Sunday: Mostly sunny, with a high near 82.
Mostly Sunny
Sunday
Night
Sunday Night: Patchy fog after 11pm.  Otherwise, mostly cloudy, with a low around 57.
Patchy Fog
Monday

Monday: Patchy fog before 11am.  Otherwise, mostly sunny, with a high near 86.
Patchy Fog
then Sunny
Monday
Night
Monday Night: Mostly clear, with a low around 56.
Mostly Clear
Lo 58 °F Hi 89 °F Lo 57 °F Hi 84 °F Lo 55 °F Hi 82 °F Lo 57 °F Hi 86 °F Lo 56 °F

Extreme Heat Warning
 

Tonight
 
Partly cloudy, with a low around 58. West southwest wind 5 to 10 mph becoming light and variable in the evening.
Friday
 
Sunny, with a high near 89. Light and variable wind becoming south southwest 5 to 10 mph in the afternoon.
Friday Night
 
Increasing clouds, with a low around 57. West wind 5 to 10 mph becoming light and variable after midnight.
Saturday
 
Partly sunny, then gradually becoming sunny, with a high near 84. Light and variable wind becoming west southwest 5 to 10 mph in the morning.
Saturday Night
 
Mostly cloudy, with a low around 55. Southwest wind around 5 mph becoming calm in the evening.
Sunday
 
Mostly sunny, with a high near 82.
Sunday Night
 
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 57.
Monday
 
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 86.
Monday Night
 
Mostly clear, with a low around 56.
Tuesday
 
Sunny, with a high near 87.
Tuesday Night
 
Mostly clear, with a low around 60.
Wednesday
 
Sunny, with a high near 87.
Wednesday Night
 
Mostly clear, with a low around 59.
Thursday
 
Sunny, with a high near 88.

 

Forecast from NOAA-NWS for 3 Miles NNW Los Alamitos CA.