S
M
T
W
T
F
S
26
67°
23°
27
72°
28°
28
58°
44°
29
53°
33°
30
48°
24°
1
47°
21°
2
46°
26°
3
56°
27°
4
70°
43°
5
63°
39°
6
51°
36°
7
54°
29°
8
54°
29°
9
65°
29°
10
54°
30°
11
52°
25°
12
59°
21°
13
59°
40°
14
46°
38°
15
71°
31°
16
69°
37°
17
73°
51°
18
86°
62°
19
81°
50°
20
58°
32°
21
59°
33°
22
63°
43°
23
60°
46°
24
66°
48°
25
71°
45°
26
67°
46°
27
69°
43°
28
73°
45°
29
74°
48°
30
72°
42°
31
67°
46°
1
69°
47°
2
66°
48°
3
65°
48°
4
66°
47°
5
65°
48°
6
70°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Lake St. Peter
Lake St. Peter's May 2026 forecast shows daily high temperatures ranging from 58° to 86°, with overnight lows between 32° and 62°. The average high for May is 69° with an average low of 46°. 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 Lake St. Peter. See also: June | July | August.
