S
M
T
W
T
F
S
26
75°
45°
27
64°
57°
28
61°
51°
29
60°
42°
30
61°
37°
1
56°
40°
2
56°
38°
3
66°
42°
4
73°
52°
5
57°
44°
6
56°
40°
7
61°
44°
8
66°
46°
9
71°
49°
10
67°
46°
11
70°
47°
12
67°
46°
13
72°
52°
14
71°
47°
15
73°
52°
16
74°
54°
17
75°
52°
18
73°
56°
19
78°
55°
20
76°
54°
21
77°
49°
22
70°
48°
23
70°
48°
24
72°
50°
25
70°
50°
26
70°
51°
27
72°
50°
28
74°
52°
29
74°
56°
30
78°
60°
31
77°
58°
1
75°
53°
2
78°
56°
3
79°
61°
4
80°
60°
5
81°
63°
6
84°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Rantoul
Rantoul's May 2026 forecast shows daily high temperatures ranging from 56° to 84°, with overnight lows between 40° and 64°. The average high for May is 72° with an average low of 52°. 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 Rantoul. See also: June | July | August.
