S
M
T
W
T
F
S
26
64°
35°
27
73°
37°
28
71°
43°
29
69°
46°
30
52°
42°
1
57°
40°
2
51°
35°
3
51°
36°
4
69°
47°
5
79°
51°
6
59°
42°
7
55°
37°
8
54°
32°
9
51°
32°
10
65°
48°
11
56°
34°
12
56°
32°
13
54°
41°
14
54°
47°
15
62°
48°
16
75°
47°
17
81°
57°
18
88°
54°
19
85°
68°
20
79°
43°
21
58°
35°
22
65°
42°
23
63°
48°
24
57°
46°
25
64°
50°
26
70°
52°
27
69°
51°
28
70°
47°
29
73°
52°
30
70°
52°
31
71°
53°
1
73°
52°
2
74°
47°
3
75°
52°
4
74°
51°
5
76°
54°
6
76°
54°
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 57° to 79°, with overnight lows between 35° and 54°. The average high for May is 70° with an average low of 49°. 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.
