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