S
M
T
W
T
F
S
26
63°
35°
27
63°
35°
28
63°
38°
29
66°
39°
30
66°
38°
31
65°
33°
1
61°
33°
2
61°
38°
3
62°
38°
4
62°
37°
5
63°
33°
6
62°
32°
7
62°
34°
8
63°
38°
9
66°
36°
10
63°
37°
11
67°
40°
12
69°
34°
13
66°
39°
14
64°
39°
15
64°
34°
16
65°
37°
17
65°
41°
18
66°
40°
19
65°
42°
20
70°
40°
21
72°
39°
22
66°
39°
23
66°
36°
24
68°
38°
25
67°
35°
26
68°
36°
27
67°
35°
28
67°
36°
29
68°
40°
30
68°
35°
31
69°
36°
1
69°
37°
2
68°
36°
3
69°
37°
4
72°
43°
5
74°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Upper Allyn
Upper Allyn's August 2026 forecast shows daily high temperatures ranging from 61° to 74°, with overnight lows between 32° and 44°. The average high for August is 66° with an average low of 37°. 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 Allyn. See also: September | October | November.
