S
M
T
W
T
F
S
26
87°
71°
27
81°
64°
28
82°
67°
29
84°
69°
30
82°
65°
31
84°
68°
1
84°
64°
2
83°
62°
3
82°
63°
4
80°
61°
5
81°
62°
6
81°
62°
7
82°
63°
8
83°
63°
9
86°
66°
10
81°
67°
11
83°
69°
12
86°
69°
13
86°
70°
14
85°
65°
15
86°
61°
16
84°
62°
17
80°
67°
18
79°
62°
19
79°
60°
20
78°
60°
21
79°
63°
22
81°
63°
23
84°
66°
24
85°
67°
25
84°
59°
26
84°
59°
27
77°
60°
28
77°
59°
29
78°
65°
30
81°
66°
31
83°
66°
1
83°
58°
2
79°
59°
3
82°
64°
4
77°
64°
5
76°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Forest Glen
Forest Glen's August 2026 forecast shows daily high temperatures ranging from 76° to 87°, with overnight lows between 58° and 71°. The average high for August is 82° with an average low of 64°. 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 Glen. See also: September | October | November.