S
M
T
W
T
F
S
26
52°
39°
27
41°
36°
28
52°
36°
29
57°
40°
30
59°
40°
1
62°
44°
2
68°
46°
3
73°
50°
4
70°
54°
5
59°
48°
6
60°
39°
7
71°
50°
8
72°
51°
9
69°
51°
10
74°
54°
11
85°
58°
12
86°
62°
13
82°
57°
14
69°
47°
15
71°
55°
16
64°
46°
17
53°
39°
18
48°
36°
19
61°
37°
20
64°
46°
21
64°
50°
22
67°
49°
23
78°
54°
24
79°
64°
25
80°
64°
26
76°
56°
27
87°
59°
28
87°
60°
29
76°
52°
30
69°
55°
31
77°
55°
1
79°
62°
2
87°
65°
3
90°
69°
4
91°
68°
5
93°
71°
6
90°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Garden Grove
Garden Grove's May 2026 forecast shows daily high temperatures ranging from 69° to 93°, with overnight lows between 52° and 71°. The average high for May is 84° with an average low of 62°. 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 Garden Grove. See also: June | July | August.
