S
M
T
W
T
F
S
26
85°
53°
27
88°
63°
28
84°
68°
29
82°
67°
30
N/A
31
86°
64°
1
88°
69°
2
84°
70°
3
80°
68°
4
80°
65°
5
82°
69°
6
84°
68°
7
85°
66°
8
87°
67°
9
87°
67°
10
85°
65°
11
84°
66°
12
85°
64°
13
81°
66°
14
85°
64°
15
81°
60°
16
79°
60°
17
79°
63°
18
80°
62°
19
79°
60°
20
78°
60°
21
79°
65°
22
83°
64°
23
79°
59°
24
77°
59°
25
77°
60°
26
78°
59°
27
77°
58°
28
77°
58°
29
78°
59°
30
79°
62°
31
83°
65°
1
83°
65°
2
81°
64°
3
76°
60°
4
76°
56°
5
74°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Upper Gwynedd Township
Upper Gwynedd Township's August 2026 forecast shows daily high temperatures ranging from 74° to 88°, with overnight lows between 56° and 70°. The average high for August is 81° 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 Upper Gwynedd Township. See also: September | October | November.