S
M
T
W
T
F
S
26
88°
61°
27
89°
64°
28
91°
67°
29
85°
66°
30
86°
60°
31
90°
61°
1
89°
62°
2
83°
74°
3
89°
72°
4
87°
69°
5
89°
75°
6
93°
71°
7
92°
68°
8
93°
69°
9
92°
69°
10
93°
68°
11
88°
69°
12
87°
68°
13
92°
67°
14
86°
69°
15
88°
71°
16
87°
74°
17
91°
69°
18
87°
64°
19
88°
68°
20
91°
67°
21
86°
64°
22
88°
65°
23
89°
66°
24
88°
67°
25
87°
65°
26
86°
66°
27
83°
64°
28
83°
64°
29
83°
64°
30
86°
66°
31
86°
66°
1
85°
65°
2
86°
66°
3
86°
67°
4
85°
66°
5
85°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Chesterfield
Chesterfield's August 2026 forecast shows daily high temperatures ranging from 83° to 91°, with overnight lows between 64° and 74°. The average high for August is 87° with an average low of 66°. 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 Chesterfield. See also: September | October | November.
