National Weather Service Forecast for: Los Alamitos CA
Issued by: National Weather Service San Diego, CA
Updated: 1:40 am PST Dec 5, 2025
 
Overnight

Overnight: Mostly clear, with a low around 48. Calm wind becoming north 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. East wind around 5 mph becoming southwest in the afternoon.
Sunny

 Saturday
Night
Saturday Night: Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 50. Calm wind becoming east around 5 mph.
Patchy Fog

 Sunday

Sunday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 70.
Patchy Fog
then Sunny
 Sunday
Night
Sunday Night: Patchy fog after 4am. Otherwise, mostly clear, with a low around 52.
Mostly Clear
then Patchy
Fog
 Monday

Monday: Patchy fog before 10am. Otherwise, sunny, with a high near 74.
Patchy Fog
then Sunny
 Monday
Night
Monday Night: Mostly clear, with a low around 56.
Mostly Clear
Lo 48 °F Hi 68 °F Lo 50 °F Hi 69 °F Lo 50 °F Hi 70 °F Lo 52 °F Hi 74 °F Lo 56 °F

 

Overnight
 
 Mostly clear, with a low around 48. Calm wind becoming north 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. East wind around 5 mph becoming southwest in the afternoon.
Saturday Night
 
 Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 50. Calm wind becoming east around 5 mph.
Sunday
 
 Patchy fog before 10am. Otherwise, mostly sunny, with a high near 70.
Sunday Night
 
 Patchy fog after 4am. Otherwise, mostly clear, with a low around 52.
Monday
 
 Patchy fog before 10am. Otherwise, sunny, with a high near 74.
Monday Night
 
 Mostly clear, with a low around 56.
Tuesday
 
 Sunny, with a high near 76.
Tuesday Night
 
 Mostly clear, with a low around 56.
Wednesday
 
 Sunny, with a high near 74.
Wednesday Night
 
 Mostly clear, with a low around 55.
Thursday
 
 Sunny, with a high near 73.

 

Forecast from NOAA-NWS for Los Alamitos CA.