S
M
T
W
T
F
S
26
69°
50°
27
72°
46°
28
73°
49°
29
69°
49°
30
57°
38°
1
66°
32°
2
49°
36°
3
59°
31°
4
73°
45°
5
74°
55°
6
64°
50°
7
58°
41°
8
66°
34°
9
67°
47°
10
74°
49°
11
62°
43°
12
70°
39°
13
71°
47°
14
52°
41°
15
68°
35°
16
75°
52°
17
85°
56°
18
88°
60°
19
87°
65°
20
84°
61°
21
69°
62°
22
59°
54°
23
63°
57°
24
77°
60°
25
71°
62°
26
71°
63°
27
74°
60°
28
75°
57°
29
76°
57°
30
74°
54°
31
73°
54°
1
75°
58°
2
74°
60°
3
75°
58°
4
76°
56°
5
74°
60°
6
77°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Coal City
Coal City's May 2026 forecast shows daily high temperatures ranging from 59° to 77°, with overnight lows between 54° and 63°. The average high for May is 73° with an average low of 58°. 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 Coal City. See also: June | July | August.
