S
M
T
W
T
F
S
26
88°
69°
27
87°
69°
28
88°
68°
29
87°
68°
30
85°
65°
31
80°
62°
1
81°
66°
2
78°
66°
3
79°
64°
4
84°
67°
5
86°
68°
6
85°
67°
7
79°
63°
8
78°
64°
9
79°
64°
10
82°
65°
11
82°
66°
12
84°
67°
13
86°
68°
14
87°
66°
15
86°
68°
16
88°
62°
17
85°
59°
18
78°
57°
19
76°
57°
20
77°
56°
21
78°
57°
22
78°
57°
23
79°
58°
24
78°
59°
25
81°
62°
26
83°
59°
27
82°
57°
28
77°
56°
29
78°
60°
30
81°
64°
31
82°
56°
1
82°
56°
2
75°
55°
3
76°
60°
4
78°
64°
5
83°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Flossmoor
Flossmoor's August 2026 forecast shows daily high temperatures ranging from 75° to 88°, with overnight lows between 55° and 69°. The average high for August is 82° with an average low of 62°. 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 Flossmoor. See also: September | October | November.
