S
M
T
W
T
F
S
26
81°
67°
27
82°
68°
28
83°
67°
29
81°
68°
30
83°
69°
31
85°
69°
1
84°
68°
2
83°
67°
3
79°
63°
4
79°
65°
5
78°
65°
6
78°
64°
7
80°
67°
8
83°
67°
9
83°
68°
10
84°
68°
11
83°
67°
12
82°
67°
13
83°
68°
14
83°
65°
15
83°
67°
16
80°
67°
17
79°
66°
18
83°
68°
19
82°
67°
20
81°
61°
21
83°
59°
22
77°
59°
23
76°
60°
24
77°
61°
25
76°
59°
26
77°
64°
27
76°
59°
28
77°
58°
29
75°
58°
30
75°
57°
31
76°
56°
1
74°
57°
2
74°
58°
3
73°
59°
4
72°
58°
5
73°
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 72° to 85°, with overnight lows between 56° and 69°. The average high for August is 79° with an average low of 64°. 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.
