S
M
T
W
T
F
S
26
81°
56°
27
70°
60°
28
66°
57°
29
65°
50°
30
65°
43°
1
61°
47°
2
59°
43°
3
70°
42°
4
77°
57°
5
70°
47°
6
62°
45°
7
65°
40°
8
75°
51°
9
78°
53°
10
71°
56°
11
75°
47°
12
81°
53°
13
73°
57°
14
71°
47°
15
82°
55°
16
80°
67°
17
85°
68°
18
80°
66°
19
85°
66°
20
69°
58°
21
67°
54°
22
67°
61°
23
73°
63°
24
78°
61°
25
79°
57°
26
79°
66°
27
80°
68°
28
87°
66°
29
81°
66°
30
81°
60°
31
78°
63°
1
83°
61°
2
80°
57°
3
80°
59°
4
84°
65°
5
83°
68°
6
82°
64°
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 84°, with overnight lows between 57° 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.
