S
M
T
W
T
F
S
26
65°
48°
27
79°
41°
28
77°
54°
29
69°
49°
30
58°
38°
1
58°
33°
2
56°
30°
3
63°
28°
4
72°
59°
5
76°
57°
6
62°
44°
7
60°
35°
8
66°
48°
9
65°
43°
10
69°
49°
11
66°
44°
12
66°
47°
13
69°
51°
14
67°
48°
15
67°
47°
16
72°
50°
17
76°
49°
18
76°
54°
19
73°
53°
20
77°
52°
21
73°
51°
22
70°
45°
23
65°
45°
24
67°
48°
25
68°
50°
26
68°
47°
27
69°
47°
28
69°
48°
29
70°
48°
30
70°
51°
31
77°
58°
1
72°
55°
2
73°
52°
3
73°
54°
4
74°
56°
5
77°
58°
6
80°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Waterloo Township
Waterloo Township's May 2026 forecast shows daily high temperatures ranging from 60° to 80°, with overnight lows between 35° and 59°. The average high for May is 70° with an average low of 50°. 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 Waterloo Township. See also: June | July | August.
