S
M
T
W
T
F
S
26
60°
35°
27
71°
30°
28
63°
51°
29
56°
47°
30
55°
37°
1
51°
30°
2
51°
35°
3
57°
34°
4
74°
42°
5
75°
49°
6
50°
44°
7
57°
32°
8
58°
32°
9
61°
43°
10
65°
34°
11
57°
29°
12
64°
25°
13
67°
45°
14
49°
44°
15
68°
40°
16
80°
33°
17
85°
49°
18
91°
52°
19
87°
56°
20
75°
50°
21
60°
43°
22
62°
43°
23
48°
45°
24
59°
55°
25
69°
52°
26
75°
55°
27
73°
50°
28
70°
45°
29
69°
44°
30
66°
48°
31
73°
55°
1
74°
52°
2
74°
53°
3
71°
54°
4
70°
49°
5
75°
54°
6
74°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in East Troy
East Troy's May 2026 forecast shows daily high temperatures ranging from 48° to 75°, with overnight lows between 43° and 55°. The average high for May is 69° 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 East Troy. See also: June | July | August.