S
M
T
W
T
F
S
26
52°
41°
27
63°
41°
28
64°
50°
29
52°
36°
30
46°
32°
1
41°
30°
2
45°
16°
3
64°
-13°
4
77°
10°
5
52°
9°
6
48°
-8°
7
52°
9°
8
52°
23°
9
50°
5°
10
57°
9°
11
45°
9°
12
70°
18°
13
60°
39°
14
65°
48°
15
76°
55°
16
81°
50°
17
65°
60°
18
78°
56°
19
68°
43°
20
57°
40°
21
60°
45°
22
60°
47°
23
64°
46°
24
66°
48°
25
71°
53°
26
70°
48°
27
65°
53°
28
72°
52°
29
67°
53°
30
65°
50°
31
65°
48°
1
66°
45°
2
65°
45°
3
66°
48°
4
69°
56°
5
77°
58°
6
77°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Menomonee Falls
Menomonee Falls's May 2026 forecast shows daily high temperatures ranging from 57° to 81°, with overnight lows between 39° and 60°. The average high for May is 68° 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 Menomonee Falls. See also: June | July | August.
