S
M
T
W
T
F
S
26
85°
61°
27
91°
60°
28
92°
66°
29
89°
61°
30
87°
66°
1
88°
68°
2
87°
65°
3
83°
60°
4
86°
57°
5
88°
63°
6
94°
60°
7
93°
65°
8
91°
66°
9
94°
66°
10
93°
70°
11
92°
70°
12
80°
70°
13
88°
69°
14
87°
67°
15
92°
69°
16
92°
71°
17
92°
68°
18
93°
69°
19
91°
69°
20
95°
68°
21
92°
70°
22
93°
69°
23
92°
68°
24
95°
69°
25
92°
68°
26
93°
69°
27
93°
68°
28
92°
72°
29
91°
69°
30
91°
69°
31
90°
68°
1
91°
69°
2
89°
69°
3
89°
70°
4
88°
70°
5
88°
69°
6
89°
70°
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 88° to 95°, with overnight lows between 68° and 72°. The average high for May is 91° with an average low of 69°. 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.
