S
M
T
W
T
F
S
26
51°
35°
27
45°
39°
28
51°
34°
29
57°
27°
30
53°
26°
1
55°
28°
2
72°
35°
3
71°
44°
4
63°
36°
5
48°
29°
6
49°
27°
7
63°
25°
8
72°
35°
9
60°
36°
10
60°
31°
11
76°
27°
12
73°
46°
13
78°
38°
14
82°
51°
15
81°
49°
16
73°
46°
17
73°
43°
18
49°
41°
19
53°
35°
20
66°
33°
21
71°
43°
22
52°
45°
23
68°
48°
24
80°
56°
25
87°
62°
26
84°
61°
27
84°
59°
28
81°
58°
29
80°
58°
30
77°
55°
31
76°
54°
1
79°
56°
2
78°
54°
3
78°
56°
4
79°
58°
5
74°
54°
6
75°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Grenville Township
Grenville Township's May 2026 forecast shows daily high temperatures ranging from 68° to 87°, with overnight lows between 48° and 62°. The average high for May is 79° 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 Grenville Township. See also: June | July | August.
