National Weather Service Forecast for: Los Alamitos CA
Issued by: National Weather Service San Diego, CA
Updated: 7:55 pm PST Dec 4, 2025
 
Overnight

Overnight: Mostly clear, with a low around 49. North wind around 5 mph.
Mostly Clear
 Friday

Friday: Sunny, with a high near 68. Calm wind becoming south around 5 mph in the afternoon.
Sunny
 Friday
Night
Friday Night: Mostly clear, with a low around 50. Calm wind.
Mostly Clear
 Saturday

Saturday: Sunny, with a high near 69. Calm wind becoming southwest around 5 mph in the afternoon.
Sunny
 Saturday
Night
Saturday Night: Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 50. Calm wind.
Patchy Fog
 Sunday

Sunday: Patchy fog before 10am. Otherwise, sunny, with a high near 72.
Patchy Fog
then Sunny
 Sunday
Night
Sunday Night: Mostly clear, with a low around 53.
Mostly Clear
 Monday

Monday: Sunny, with a high near 76.
Sunny
 Monday
Night
Monday Night: Mostly clear, with a low around 56.
Mostly Clear
Lo 49 °F Hi 68 °F Lo 50 °F Hi 69 °F Lo 50 °F Hi 72 °F Lo 53 °F Hi 76 °F Lo 56 °F

 

Overnight
 
 Mostly clear, with a low around 49. North wind around 5 mph.
Friday
 
 Sunny, with a high near 68. Calm wind becoming south around 5 mph in the afternoon.
Friday Night
 
 Mostly clear, with a low around 50. Calm wind.
Saturday
 
 Sunny, with a high near 69. Calm wind becoming southwest around 5 mph in the afternoon.
Saturday Night
 
 Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 50. Calm wind.
Sunday
 
 Patchy fog before 10am. Otherwise, sunny, with a high near 72.
Sunday Night
 
 Mostly clear, with a low around 53.
Monday
 
 Sunny, with a high near 76.
Monday Night
 
 Mostly clear, with a low around 56.
Tuesday
 
 Sunny, with a high near 78.
Tuesday Night
 
 Mostly clear, with a low around 56.
Wednesday
 
 Sunny, with a high near 75.
Wednesday Night
 
 Mostly clear, with a low around 55.
Thursday
 
 Sunny, with a high near 75.

 

Forecast from NOAA-NWS for Los Alamitos CA.