S
M
T
W
T
F
S
26
83°
61°
27
83°
60°
28
85°
59°
29
82°
56°
30
84°
60°
31
86°
62°
1
82°
61°
2
83°
59°
3
84°
56°
4
77°
54°
5
76°
56°
6
77°
54°
7
81°
56°
8
85°
58°
9
83°
57°
10
84°
56°
11
80°
54°
12
77°
55°
13
78°
54°
14
77°
53°
15
77°
55°
16
80°
61°
17
83°
62°
18
87°
61°
19
86°
60°
20
85°
53°
21
81°
62°
22
85°
61°
23
85°
53°
24
77°
55°
25
80°
52°
26
77°
54°
27
79°
51°
28
78°
55°
29
79°
51°
30
75°
51°
31
78°
54°
1
82°
61°
2
84°
61°
3
83°
59°
4
74°
50°
5
75°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Forest Park
Forest Park's August 2026 forecast shows daily high temperatures ranging from 74° to 87°, with overnight lows between 50° and 62°. The average high for August is 81° 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 Forest Park. See also: September | October | November.
