S
M
T
W
T
F
S
26
86°
55°
27
88°
54°
28
88°
53°
29
87°
54°
30
86°
53°
31
88°
54°
1
87°
55°
2
89°
56°
3
89°
54°
4
88°
52°
5
89°
55°
6
87°
47°
7
82°
52°
8
85°
50°
9
84°
47°
10
84°
55°
11
86°
53°
12
88°
48°
13
82°
52°
14
85°
54°
15
82°
51°
16
79°
48°
17
78°
46°
18
80°
52°
19
85°
53°
20
87°
49°
21
76°
51°
22
76°
44°
23
77°
46°
24
77°
48°
25
78°
43°
26
76°
48°
27
76°
42°
28
74°
43°
29
75°
47°
30
76°
46°
31
75°
45°
1
75°
41°
2
73°
46°
3
74°
48°
4
74°
41°
5
70°
41°
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 70° to 89°, with overnight lows between 41° and 56°. The average high for August is 81° with an average low of 49°. 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.
