S
M
T
W
T
F
S
26
69°
55°
27
71°
52°
28
74°
51°
29
73°
52°
30
73°
58°
1
74°
58°
2
72°
60°
3
70°
57°
4
69°
56°
5
70°
56°
6
71°
58°
7
76°
61°
8
77°
62°
9
75°
61°
10
74°
60°
11
80°
60°
12
76°
61°
13
75°
62°
14
74°
61°
15
73°
58°
16
74°
60°
17
76°
62°
18
77°
62°
19
77°
61°
20
76°
62°
21
77°
62°
22
77°
61°
23
78°
63°
24
78°
63°
25
77°
62°
26
76°
62°
27
76°
61°
28
70°
60°
29
69°
59°
30
69°
59°
31
70°
62°
1
72°
63°
2
74°
62°
3
73°
62°
4
72°
61°
5
71°
60°
6
71°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Los Alamitos
Los Alamitos's May 2026 forecast shows daily high temperatures ranging from 69° to 80°, with overnight lows between 56° and 63°. The average high for May is 74° with an average low of 61°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Los Alamitos. See also: June | July | August.