S
M
T
W
T
F
S
26
90°
76°
27
90°
76°
28
89°
75°
29
88°
75°
30
89°
71°
31
82°
69°
1
82°
69°
2
83°
70°
3
84°
71°
4
84°
69°
5
85°
69°
6
86°
72°
7
87°
75°
8
85°
75°
9
83°
73°
10
86°
68°
11
85°
69°
12
86°
69°
13
84°
73°
14
85°
74°
15
87°
73°
16
87°
75°
17
88°
75°
18
88°
74°
19
86°
67°
20
82°
67°
21
81°
68°
22
81°
67°
23
82°
66°
24
80°
67°
25
83°
67°
26
86°
66°
27
84°
67°
28
81°
70°
29
81°
68°
30
79°
69°
31
83°
71°
1
85°
65°
2
83°
64°
3
78°
63°
4
79°
65°
5
78°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Elmhurst
Elmhurst's August 2026 forecast shows daily high temperatures ranging from 78° to 90°, with overnight lows between 63° and 76°. The average high for August is 84° with an average low of 70°. 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 Elmhurst. See also: September | October | November.
