S
M
T
W
T
F
S
26
87°
67°
27
88°
69°
28
88°
68°
29
85°
68°
30
84°
67°
31
88°
69°
1
89°
69°
2
89°
67°
3
89°
68°
4
89°
68°
5
88°
66°
6
83°
67°
7
86°
62°
8
83°
61°
9
83°
61°
10
82°
62°
11
84°
67°
12
88°
67°
13
88°
66°
14
87°
61°
15
83°
60°
16
82°
66°
17
82°
66°
18
84°
60°
19
82°
60°
20
82°
61°
21
83°
60°
22
85°
59°
23
85°
59°
24
84°
60°
25
84°
60°
26
85°
64°
27
87°
65°
28
86°
64°
29
87°
66°
30
86°
63°
31
84°
56°
1
81°
56°
2
78°
57°
3
79°
57°
4
79°
56°
5
80°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Chestnut Hill
Chestnut Hill's August 2026 forecast shows daily high temperatures ranging from 78° to 89°, with overnight lows between 56° and 69°. The average high for August is 85° with an average low of 63°. 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 Hill. See also: September | October | November.
