National Weather Service Forecast for: 3 Miles NNW Los Alamitos CA
Issued by: National Weather Service Los Angeles/Oxnard, CA
Updated: 11:41 pm PDT Aug 19, 2026
 
Overnight

Overnight: Mostly clear, with a low around 71. South wind around 5 mph.
Mostly Clear
 Thursday

Thursday: Mostly sunny, with a high near 89. South southwest wind 5 to 10 mph.
Mostly Sunny
 Thursday
Night
Thursday Night: A 20 percent chance of showers and thunderstorms after 11pm. Increasing clouds, with a low around 70. West wind 5 to 10 mph becoming light and variable in the evening.
Slight Chance
T-storms
 Friday

Friday: Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 90. Light south wind becoming south southwest 5 to 10 mph in the afternoon.
Patchy Fog
then Sunny
 Friday
Night
Friday Night: Partly cloudy, with a low around 70. Southwest wind around 5 mph becoming calm in the evening.
Partly Cloudy
 Saturday

Saturday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 91.
Patchy Fog
then Sunny
 Saturday
Night
Saturday Night: Mostly clear, with a low around 69.
Mostly Clear
 Sunday

Sunday: Sunny, with a high near 90.
Sunny
 Sunday
Night
Sunday Night: Mostly clear, with a low around 70.
Mostly Clear
Lo 71 °F Hi 89 °F Lo 70 °F Hi 90 °F Lo 70 °F Hi 91 °F Lo 69 °F Hi 90 °F Lo 70 °F

 

Overnight
 
 Mostly clear, with a low around 71. South wind around 5 mph.
Thursday
 
 Mostly sunny, with a high near 89. South southwest wind 5 to 10 mph.
Thursday Night
 
 A 20 percent chance of showers and thunderstorms after 11pm. Increasing clouds, with a low around 70. West wind 5 to 10 mph becoming light and variable in the evening.
Friday
 
 Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 90. Light south wind becoming south southwest 5 to 10 mph in the afternoon.
Friday Night
 
 Partly cloudy, with a low around 70. Southwest wind around 5 mph becoming calm in the evening.
Saturday
 
 Patchy fog before 11am. Otherwise, mostly sunny, with a high near 91.
Saturday Night
 
 Mostly clear, with a low around 69.
Sunday
 
 Sunny, with a high near 90.
Sunday Night
 
 Mostly clear, with a low around 70.
Monday
 
 Sunny, with a high near 91.
Monday Night
 
 Mostly clear, with a low around 71.
Tuesday
 
 Sunny, with a high near 92.
Tuesday Night
 
 Mostly clear, with a low around 71.
Wednesday
 
 Sunny, with a high near 91.

 

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