S
M
T
W
T
F
S
26
91°
71°
27
92°
72°
28
92°
72°
29
91°
71°
30
92°
72°
31
91°
71°
1
92°
72°
2
93°
73°
3
93°
73°
4
94°
72°
5
94°
72°
6
93°
73°
7
94°
72°
8
92°
71°
9
91°
70°
10
90°
70°
11
92°
72°
12
92°
72°
13
91°
71°
14
92°
72°
15
92°
70°
16
91°
68°
17
92°
66°
18
88°
68°
19
90°
65°
20
86°
67°
21
90°
68°
22
89°
67°
23
85°
62°
24
83°
62°
25
83°
60°
26
84°
60°
27
82°
59°
28
83°
59°
29
82°
60°
30
84°
65°
31
87°
65°
1
85°
64°
2
88°
65°
3
88°
64°
4
87°
62°
5
83°
64°
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 82° to 94°, with overnight lows between 59° and 73°. The average high for August is 89° with an average low of 68°. 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.
