S
M
T
W
T
F
S
26
65°
48°
27
71°
50°
28
64°
52°
29
62°
43°
30
58°
37°
1
53°
39°
2
52°
34°
3
60°
35°
4
73°
49°
5
66°
45°
6
56°
42°
7
60°
35°
8
65°
46°
9
74°
54°
10
66°
52°
11
71°
39°
12
75°
40°
13
61°
47°
14
65°
38°
15
66°
40°
16
76°
61°
17
84°
62°
18
83°
67°
19
83°
59°
20
69°
49°
21
68°
52°
22
67°
63°
23
74°
57°
24
74°
59°
25
76°
60°
26
75°
60°
27
78°
59°
28
76°
56°
29
78°
56°
30
77°
57°
31
78°
55°
1
79°
60°
2
78°
59°
3
73°
55°
4
72°
52°
5
72°
53°
6
76°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Grant City
Grant City's May 2026 forecast shows daily high temperatures ranging from 67° to 83°, with overnight lows between 49° and 67°. The average high for May is 75° with an average low of 57°. 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 Grant City. See also: June | July | August.
