S
M
T
W
T
F
S
26
67°
45°
27
66°
47°
28
61°
46°
29
57°
43°
30
55°
34°
1
51°
34°
2
52°
30°
3
63°
35°
4
77°
45°
5
57°
44°
6
56°
37°
7
58°
35°
8
66°
35°
9
70°
46°
10
61°
36°
11
63°
37°
12
63°
32°
13
61°
37°
14
66°
36°
15
67°
38°
16
81°
55°
17
84°
59°
18
83°
65°
19
82°
51°
20
64°
42°
21
65°
45°
22
65°
56°
23
67°
56°
24
71°
55°
25
75°
57°
26
78°
59°
27
78°
58°
28
79°
60°
29
78°
59°
30
79°
61°
31
80°
59°
1
78°
53°
2
75°
56°
3
70°
55°
4
70°
53°
5
71°
57°
6
75°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Mendon
Mendon's May 2026 forecast shows daily high temperatures ranging from 64° to 82°, with overnight lows between 42° and 61°. The average high for May is 74° with an average low of 55°. 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 Mendon. See also: June | July | August.
