S
M
T
W
T
F
S
26
85°
67°
27
83°
62°
28
83°
62°
29
84°
68°
30
85°
62°
31
84°
67°
1
88°
63°
2
85°
61°
3
84°
60°
4
81°
60°
5
82°
61°
6
82°
60°
7
83°
60°
8
83°
61°
9
84°
66°
10
82°
65°
11
84°
66°
12
86°
67°
13
86°
67°
14
89°
63°
15
89°
59°
16
83°
60°
17
82°
65°
18
84°
60°
19
87°
58°
20
81°
57°
21
81°
57°
22
82°
58°
23
83°
62°
24
87°
64°
25
86°
62°
26
87°
58°
27
81°
57°
28
80°
56°
29
80°
63°
30
83°
63°
31
86°
62°
1
86°
62°
2
85°
61°
3
83°
62°
4
81°
61°
5
80°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Chestnut
Chestnut's August 2026 forecast shows daily high temperatures ranging from 80° to 89°, with overnight lows between 56° and 68°. The average high for August is 84° with an average low of 62°. 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 Chestnut. See also: September | October | November.