S
M
T
W
T
F
S
26
89°
68°
27
83°
68°
28
74°
69°
29
77°
64°
30
84°
58°
31
80°
63°
1
70°
65°
2
74°
67°
3
82°
60°
4
84°
63°
5
83°
68°
6
79°
67°
7
85°
68°
8
84°
64°
9
88°
64°
10
88°
72°
11
80°
68°
12
82°
68°
13
77°
70°
14
78°
69°
15
83°
71°
16
85°
73°
17
78°
62°
18
81°
60°
19
81°
64°
20
78°
60°
21
80°
56°
22
83°
64°
23
75°
60°
24
78°
53°
25
79°
54°
26
85°
63°
27
81°
64°
28
83°
61°
29
82°
60°
30
82°
67°
31
91°
71°
1
93°
70°
2
95°
71°
3
91°
70°
4
86°
68°
5
84°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Olympia Fields
Olympia Fields's August 2026 forecast shows daily high temperatures ranging from 84° to 95°, with overnight lows between 64° and 71°. The average high for August is 90° with an average low of 69°. 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 Olympia Fields. See also: September | October | November.
