S
M
T
W
T
F
S
26
62°
41°
27
59°
45°
28
62°
46°
29
52°
36°
30
49°
32°
1
45°
29°
2
59°
28°
3
68°
48°
4
77°
44°
5
56°
33°
6
54°
32°
7
56°
32°
8
67°
31°
9
63°
40°
10
60°
30°
11
55°
33°
12
75°
35°
13
60°
39°
14
68°
33°
15
78°
46°
16
82°
57°
17
61°
50°
18
72°
60°
19
72°
52°
20
59°
44°
21
57°
42°
22
64°
46°
23
72°
51°
24
77°
52°
25
81°
53°
26
87°
61°
27
81°
59°
28
73°
45°
29
81°
55°
30
70°
50°
31
74°
47°
1
77°
50°
2
76°
52°
3
79°
59°
4
79°
62°
5
79°
59°
6
74°
56°
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 70° to 81°, with overnight lows between 47° and 62°. The average high for May is 77° with an average low of 54°. 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.
