S
M
T
W
T
F
S
26
86°
68°
27
87°
68°
28
86°
67°
29
87°
67°
30
88°
68°
31
86°
67°
1
81°
64°
2
80°
61°
3
80°
63°
4
81°
66°
5
80°
66°
6
81°
65°
7
83°
64°
8
84°
66°
9
84°
66°
10
85°
65°
11
85°
66°
12
86°
66°
13
85°
65°
14
89°
65°
15
89°
65°
16
83°
63°
17
81°
64°
18
85°
65°
19
84°
59°
20
82°
57°
21
79°
56°
22
78°
56°
23
80°
58°
24
80°
57°
25
81°
59°
26
80°
62°
27
84°
61°
28
84°
58°
29
80°
58°
30
80°
57°
31
78°
56°
1
77°
58°
2
79°
59°
3
78°
56°
4
79°
56°
5
78°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Chester
Chester's August 2026 forecast shows daily high temperatures ranging from 77° to 89°, with overnight lows between 56° 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 Chester. See also: September | October | November.
