National Weather Service Forecast for: Los Alamitos CA
Issued by: National Weather Service San Diego, CA
Updated: 5:33 am PDT Oct 6, 2026
 
Today

Today: Sunny, with a high near 96. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Sunny
Tonight

Tonight: Clear, with a low around 72. South wind around 5 mph becoming calm.
Clear
Wednesday

Wednesday: Sunny, with a high near 92. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Sunny
Wednesday
Night
Wednesday Night: Mostly clear, with a low around 70. Southwest wind around 5 mph becoming calm.
Mostly Clear
Thursday

Thursday: Patchy fog before 11am.  Otherwise, sunny, with a high near 92. Light southwest wind becoming west 5 to 10 mph in the afternoon.
Patchy Fog
then Sunny
Thursday
Night
Thursday Night: Increasing clouds, with a low around 70.
Increasing
Clouds
Friday

Friday: Patchy fog before 11am.  Otherwise, mostly sunny, with a high near 89.
Patchy Fog
then Sunny
Friday
Night
Friday Night: Mostly clear, with a low around 69.
Mostly Clear
Saturday

Saturday: Mostly sunny, with a high near 82.
Mostly Sunny
Hi 96 °F Lo 72 °F Hi 92 °F Lo 70 °F Hi 92 °F Lo 70 °F Hi 89 °F Lo 69 °F Hi 82 °F

Extreme Heat Warning
 

Today
 
Sunny, with a high near 96. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Tonight
 
Clear, with a low around 72. South wind around 5 mph becoming calm.
Wednesday
 
Sunny, with a high near 92. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Wednesday Night
 
Mostly clear, with a low around 70. Southwest wind around 5 mph becoming calm.
Thursday
 
Patchy fog before 11am. Otherwise, sunny, with a high near 92. Light southwest wind becoming west 5 to 10 mph in the afternoon.
Thursday Night
 
Increasing clouds, with a low around 70.
Friday
 
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 89.
Friday Night
 
Mostly clear, with a low around 69.
Saturday
 
Mostly sunny, with a high near 82.
Saturday Night
 
Partly cloudy, with a low around 67.
Sunday
 
A slight chance of showers. Partly sunny, with a high near 77.
Sunday Night
 
A slight chance of showers. Partly cloudy, with a low around 64.
Columbus Day
 
A slight chance of showers. Mostly sunny, with a high near 75.

 

Forecast from NOAA-NWS for Los Alamitos CA.