S
M
T
W
T
F
S
26
91°
74°
27
94°
72°
28
93°
73°
29
92°
73°
30
91°
72°
31
90°
72°
1
91°
72°
2
91°
72°
3
94°
75°
4
95°
74°
5
94°
72°
6
95°
74°
7
93°
72°
8
92°
72°
9
95°
72°
10
93°
74°
11
94°
74°
12
92°
73°
13
91°
74°
14
91°
73°
15
92°
73°
16
91°
75°
17
94°
75°
18
94°
73°
19
92°
73°
20
91°
72°
21
94°
74°
22
94°
73°
23
91°
74°
24
90°
73°
25
91°
71°
26
90°
70°
27
92°
73°
28
94°
72°
29
93°
71°
30
89°
71°
31
89°
70°
1
90°
70°
2
91°
69°
3
91°
70°
4
90°
72°
5
91°
73°
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 89° to 95°, with overnight lows between 69° and 75°. The average high for August is 92° with an average low of 73°. 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.
