S
M
T
W
T
F
S
26
97°
75°
27
96°
75°
28
90°
76°
29
87°
70°
30
87°
69°
31
79°
69°
1
74°
69°
2
80°
68°
3
85°
64°
4
86°
65°
5
88°
64°
6
81°
68°
7
89°
68°
8
86°
71°
9
90°
69°
10
92°
74°
11
93°
74°
12
94°
71°
13
94°
74°
14
95°
76°
15
96°
75°
16
99°
74°
17
86°
68°
18
87°
65°
19
80°
69°
20
86°
69°
21
88°
65°
22
87°
65°
23
84°
64°
24
85°
62°
25
87°
67°
26
90°
70°
27
85°
63°
28
85°
60°
29
89°
63°
30
92°
69°
31
96°
71°
1
95°
72°
2
97°
73°
3
94°
70°
4
94°
70°
5
90°
69°
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 85° to 97°, with overnight lows between 60° and 73°. The average high for August is 92° 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.
