S
M
T
W
T
F
S
26
65°
44°
27
61°
44°
28
53°
37°
29
55°
38°
30
52°
37°
1
53°
35°
2
67°
34°
3
71°
50°
4
62°
43°
5
51°
33°
6
48°
30°
7
61°
36°
8
73°
41°
9
61°
48°
10
61°
38°
11
72°
37°
12
72°
57°
13
73°
45°
14
80°
51°
15
91°
56°
16
80°
54°
17
80°
57°
18
63°
55°
19
56°
42°
20
58°
37°
21
64°
48°
22
62°
48°
23
68°
53°
24
84°
52°
25
88°
62°
26
87°
67°
27
89°
64°
28
85°
65°
29
85°
68°
30
79°
62°
31
79°
64°
1
81°
63°
2
85°
63°
3
86°
64°
4
78°
62°
5
79°
60°
6
78°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in St. Peter
St. Peter's May 2026 forecast shows daily high temperatures ranging from 78° to 86°, with overnight lows between 59° and 68°. The average high for May is 81° with an average low of 63°. 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 St. Peter. See also: June | July | August.
