S
M
T
W
T
F
S
26
85°
65°
27
86°
65°
28
85°
64°
29
83°
65°
30
81°
64°
31
85°
65°
1
86°
64°
2
86°
65°
3
86°
64°
4
86°
65°
5
85°
63°
6
80°
64°
7
81°
60°
8
80°
58°
9
80°
58°
10
81°
59°
11
80°
64°
12
83°
64°
13
85°
63°
14
85°
57°
15
79°
57°
16
79°
61°
17
81°
63°
18
79°
57°
19
81°
57°
20
80°
58°
21
82°
57°
22
83°
57°
23
83°
56°
24
81°
55°
25
80°
56°
26
81°
60°
27
83°
61°
28
80°
60°
29
82°
62°
30
82°
58°
31
81°
52°
1
79°
51°
2
75°
53°
3
74°
52°
4
75°
52°
5
74°
53°
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 74° to 86°, with overnight lows between 51° and 65°. The average high for August is 82° with an average low of 60°. 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.
