National Weather Service Forecast for: Los Alamitos CA
Issued by: National Weather Service San Diego, CA
Updated: 1:04 am PST Feb 2, 2026
 
Overnight

Overnight: Patchy fog.  Otherwise, partly cloudy, with a low around 53. Calm wind.
Patchy Fog
Monday

Monday: Patchy fog before 7am.  Otherwise, mostly sunny, with a high near 72. Light southeast wind becoming south 5 to 10 mph in the afternoon.
Patchy Fog
then Sunny
Monday
Night
Monday Night: Patchy fog.  Otherwise, increasing clouds, with a low around 51. South wind around 5 mph becoming calm.
Patchy Fog
Tuesday

Tuesday: Patchy fog before 10am.  Otherwise, sunny, with a high near 78. Calm wind becoming southwest around 5 mph in the afternoon.
Patchy Fog
then Sunny
Tuesday
Night
Tuesday Night: Mostly clear, with a low around 56. Northwest wind around 5 mph becoming calm.
Mostly Clear
Wednesday

Wednesday: Sunny, with a high near 85.
Sunny
Wednesday
Night
Wednesday Night: Mostly clear, with a low around 58.
Mostly Clear
Thursday

Thursday: Partly sunny, with a high near 80.
Partly Sunny
Thursday
Night
Thursday Night: Mostly cloudy, with a low around 56.
Mostly Cloudy
Lo 53 °F Hi 72 °F Lo 51 °F Hi 78 °F Lo 56 °F Hi 85 °F Lo 58 °F Hi 80 °F Lo 56 °F

Air Quality Alert
 

Overnight
 
Patchy fog. Otherwise, partly cloudy, with a low around 53. Calm wind.
Monday
 
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 72. Light southeast wind becoming south 5 to 10 mph in the afternoon.
Monday Night
 
Patchy fog. Otherwise, increasing clouds, with a low around 51. South wind around 5 mph becoming calm.
Tuesday
 
Patchy fog before 10am. Otherwise, sunny, with a high near 78. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
 
Mostly clear, with a low around 56. Northwest wind around 5 mph becoming calm.
Wednesday
 
Sunny, with a high near 85.
Wednesday Night
 
Mostly clear, with a low around 58.
Thursday
 
Partly sunny, with a high near 80.
Thursday Night
 
Mostly cloudy, with a low around 56.
Friday
 
Mostly cloudy, with a high near 73.
Friday Night
 
Partly cloudy, with a low around 53.
Saturday
 
Sunny, with a high near 74.
Saturday Night
 
Mostly clear, with a low around 52.
Sunday
 
Sunny, with a high near 76.

 

Forecast from NOAA-NWS for Los Alamitos CA.