S
M
T
W
T
F
S
26
94°
72°
27
95°
74°
28
95°
74°
29
96°
75°
30
95°
74°
31
96°
75°
1
95°
74°
2
96°
75°
3
96°
75°
4
95°
74°
5
97°
75°
6
97°
74°
7
96°
72°
8
93°
72°
9
93°
71°
10
95°
74°
11
96°
74°
12
96°
73°
13
95°
74°
14
94°
73°
15
94°
72°
16
93°
71°
17
92°
69°
18
92°
69°
19
91°
68°
20
89°
69°
21
88°
67°
22
85°
61°
23
84°
60°
24
84°
59°
25
85°
60°
26
83°
59°
27
83°
59°
28
84°
63°
29
87°
64°
30
90°
66°
31
91°
66°
1
91°
65°
2
90°
66°
3
91°
65°
4
91°
66°
5
90°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Carbondale
Carbondale's August 2026 forecast shows daily high temperatures ranging from 83° to 97°, with overnight lows between 59° and 75°. The average high for August is 92° with an average low of 69°. 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 Carbondale. See also: September | October | November.