S
M
T
W
T
F
S
26
64°
36°
27
70°
32°
28
66°
34°
29
60°
37°
30
52°
43°
1
59°
39°
2
52°
38°
3
52°
32°
4
69°
37°
5
80°
46°
6
65°
48°
7
58°
35°
8
56°
32°
9
50°
31°
10
70°
47°
11
59°
38°
12
60°
34°
13
56°
36°
14
54°
50°
15
58°
44°
16
76°
43°
17
84°
51°
18
84°
61°
19
91°
70°
20
86°
47°
21
65°
36°
22
66°
44°
23
59°
47°
24
58°
48°
25
72°
51°
26
69°
50°
27
71°
52°
28
76°
52°
29
72°
53°
30
75°
52°
31
76°
60°
1
69°
50°
2
66°
50°
3
66°
51°
4
67°
54°
5
68°
54°
6
72°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Peterborough
Peterborough's May 2026 forecast shows daily high temperatures ranging from 58° to 91°, with overnight lows between 36° and 70°. The average high for May is 71° with an average low of 52°. 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 Peterborough. See also: June | July | August.
