S
M
T
W
T
F
S
26
86°
73°
27
89°
75°
28
87°
76°
29
81°
61°
30
66°
59°
1
59°
49°
2
75°
52°
3
78°
58°
4
82°
68°
5
85°
69°
6
89°
58°
7
78°
59°
8
75°
60°
9
78°
64°
10
83°
66°
11
86°
66°
12
88°
65°
13
86°
66°
14
85°
63°
15
88°
67°
16
87°
67°
17
88°
68°
18
88°
68°
19
87°
67°
20
88°
68°
21
85°
68°
22
81°
67°
23
83°
68°
24
86°
69°
25
85°
69°
26
83°
64°
27
83°
62°
28
84°
68°
29
86°
69°
30
87°
70°
31
88°
69°
1
89°
67°
2
89°
68°
3
90°
70°
4
92°
71°
5
92°
71°
6
91°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Granger
Granger's May 2026 forecast shows daily high temperatures ranging from 59° to 92°, with overnight lows between 49° and 71°. The average high for May is 85° with an average low of 66°. 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 Granger. See also: June | July | August.