S
M
T
W
T
F
S
26
68°
43°
27
66°
52°
28
62°
51°
29
58°
37°
30
60°
34°
1
51°
36°
2
55°
29°
3
66°
41°
4
80°
46°
5
57°
46°
6
57°
35°
7
62°
32°
8
67°
46°
9
75°
47°
10
66°
42°
11
61°
40°
12
78°
38°
13
63°
38°
14
69°
35°
15
76°
52°
16
82°
60°
17
88°
63°
18
78°
67°
19
79°
51°
20
60°
46°
21
64°
51°
22
66°
58°
23
71°
54°
24
75°
58°
25
79°
57°
26
80°
59°
27
77°
60°
28
76°
57°
29
77°
55°
30
76°
57°
31
75°
54°
1
78°
60°
2
77°
59°
3
70°
55°
4
70°
52°
5
71°
59°
6
76°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Peotone
Peotone's May 2026 forecast shows daily high temperatures ranging from 60° to 80°, with overnight lows between 46° and 67°. The average high for May is 74° with an average low of 57°. 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 Peotone. See also: June | July | August.
