S
M
T
W
T
F
S
26
92°
73°
27
91°
76°
28
94°
76°
29
89°
73°
30
90°
73°
31
91°
70°
1
79°
72°
2
85°
71°
3
86°
70°
4
86°
70°
5
89°
73°
6
90°
72°
7
91°
71°
8
92°
72°
9
92°
72°
10
91°
71°
11
92°
73°
12
88°
72°
13
90°
72°
14
91°
71°
15
86°
69°
16
87°
69°
17
91°
73°
18
92°
74°
19
92°
74°
20
93°
73°
21
92°
73°
22
90°
72°
23
90°
73°
24
91°
74°
25
90°
73°
26
90°
73°
27
89°
72°
28
88°
73°
29
89°
72°
30
90°
72°
31
90°
72°
1
89°
73°
2
90°
72°
3
89°
72°
4
87°
68°
5
85°
67°
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 79° to 93°, with overnight lows between 67° and 74°. The average high for August is 89° with an average low of 72°. 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.
