S
M
T
W
T
F
S
26
86°
70°
27
86°
69°
28
87°
68°
29
86°
72°
30
87°
74°
31
86°
68°
1
86°
73°
2
87°
74°
3
89°
68°
4
87°
67°
5
85°
68°
6
86°
67°
7
86°
69°
8
84°
67°
9
84°
70°
10
89°
71°
11
85°
68°
12
86°
72°
13
89°
73°
14
85°
73°
15
88°
72°
16
91°
66°
17
88°
66°
18
84°
67°
19
83°
70°
20
83°
66°
21
84°
65°
22
83°
69°
23
84°
70°
24
88°
71°
25
90°
70°
26
89°
64°
27
88°
63°
28
81°
63°
29
81°
64°
30
82°
65°
31
84°
69°
1
87°
69°
2
87°
68°
3
86°
67°
4
86°
69°
5
85°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Wissahickon
Wissahickon's August 2026 forecast shows daily high temperatures ranging from 81° to 91°, with overnight lows between 63° and 74°. The average high for August is 86° with an average low of 69°. 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 Wissahickon. See also: September | October | November.
