S
M
T
W
T
F
S
26
88°
70°
27
89°
70°
28
89°
69°
29
90°
68°
30
88°
69°
31
87°
68°
1
84°
66°
2
81°
64°
3
83°
68°
4
83°
67°
5
86°
68°
6
88°
68°
7
88°
69°
8
86°
69°
9
87°
68°
10
87°
68°
11
86°
67°
12
88°
68°
13
87°
69°
14
91°
65°
15
88°
65°
16
86°
64°
17
83°
63°
18
84°
61°
19
85°
58°
20
80°
56°
21
79°
56°
22
79°
57°
23
80°
57°
24
81°
59°
25
81°
58°
26
85°
61°
27
87°
64°
28
88°
62°
29
86°
57°
30
81°
57°
31
78°
58°
1
78°
56°
2
79°
53°
3
77°
57°
4
80°
61°
5
78°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Coal Valley
Coal Valley's August 2026 forecast shows daily high temperatures ranging from 77° to 91°, with overnight lows between 53° and 70°. The average high for August is 84° with an average low of 63°. 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 Valley. See also: September | October | November.
