S
M
T
W
T
F
S
26
83°
63°
27
82°
63°
28
81°
62°
29
78°
58°
30
76°
55°
31
74°
55°
1
74°
56°
2
75°
55°
3
77°
61°
4
76°
59°
5
76°
61°
6
77°
62°
7
79°
61°
8
76°
59°
9
76°
58°
10
77°
55°
11
78°
58°
12
81°
60°
13
82°
61°
14
83°
62°
15
82°
61°
16
81°
62°
17
84°
59°
18
77°
53°
19
75°
52°
20
73°
51°
21
73°
52°
22
74°
52°
23
74°
53°
24
77°
52°
25
79°
54°
26
80°
59°
27
80°
55°
28
78°
52°
29
72°
51°
30
72°
51°
31
76°
55°
1
78°
49°
2
72°
50°
3
71°
52°
4
75°
57°
5
76°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Coal City
Coal City's August 2026 forecast shows daily high temperatures ranging from 71° to 84°, with overnight lows between 49° and 63°. The average high for August is 77° 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 August weather will actually feel in Coal City. See also: September | October | November.
