S
M
T
W
T
F
S
26
59°
34°
27
65°
30°
28
61°
31°
29
59°
45°
30
55°
45°
1
64°
48°
2
59°
42°
3
56°
33°
4
69°
43°
5
72°
47°
6
66°
55°
7
66°
48°
8
62°
34°
9
63°
33°
10
71°
52°
11
63°
36°
12
66°
34°
13
66°
46°
14
60°
45°
15
61°
42°
16
74°
39°
17
88°
56°
18
83°
51°
19
92°
65°
20
92°
62°
21
63°
48°
22
62°
45°
23
65°
44°
24
56°
50°
25
72°
56°
26
81°
49°
27
83°
59°
28
71°
47°
29
70°
49°
30
52°
37°
31
71°
50°
1
64°
44°
2
61°
50°
3
67°
53°
4
75°
53°
5
77°
58°
6
72°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Middleborough
Middleborough's May 2026 forecast shows daily high temperatures ranging from 52° to 77°, with overnight lows between 37° and 58°. 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 Middleborough. See also: June | July | August.