S
M
T
W
T
F
S
26
90°
73°
27
87°
72°
28
85°
70°
29
88°
73°
30
92°
74°
31
90°
73°
1
86°
73°
2
88°
72°
3
91°
64°
4
84°
66°
5
87°
66°
6
86°
67°
7
85°
65°
8
86°
66°
9
85°
65°
10
86°
68°
11
88°
71°
12
88°
68°
13
91°
66°
14
84°
66°
15
83°
70°
16
85°
67°
17
85°
64°
18
84°
65°
19
83°
63°
20
84°
65°
21
86°
68°
22
88°
71°
23
90°
70°
24
90°
70°
25
91°
69°
26
90°
68°
27
89°
69°
28
86°
68°
29
85°
65°
30
87°
61°
31
82°
59°
1
81°
60°
2
81°
61°
3
82°
64°
4
83°
63°
5
87°
61°
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 81° to 92°, with overnight lows between 59° and 74°. The average high for August is 86° with an average low of 67°. 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.
