S
M
T
W
T
F
S
26
95°
72°
27
95°
75°
28
96°
73°
29
95°
73°
30
96°
75°
31
96°
75°
1
93°
78°
2
96°
75°
3
98°
73°
4
96°
73°
5
95°
75°
6
96°
74°
7
97°
75°
8
95°
72°
9
94°
73°
10
90°
73°
11
96°
72°
12
96°
74°
13
97°
78°
14
94°
75°
15
98°
77°
16
98°
71°
17
98°
69°
18
97°
74°
19
97°
76°
20
100°
74°
21
100°
76°
22
103°
79°
23
100°
77°
24
100°
77°
25
100°
78°
26
102°
79°
27
100°
76°
28
94°
75°
29
95°
74°
30
95°
73°
31
93°
75°
1
95°
75°
2
97°
75°
3
97°
74°
4
96°
75°
5
94°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Willowbrook
Willowbrook's August 2026 forecast shows daily high temperatures ranging from 93° to 102°, with overnight lows between 73° and 79°. The average high for August is 97° with an average low of 75°. 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 Willowbrook. See also: September | October | November.
