S
M
T
W
T
F
S
26
92°
72°
27
89°
66°
28
86°
62°
29
83°
61°
30
85°
67°
31
86°
66°
1
85°
65°
2
82°
64°
3
84°
65°
4
84°
67°
5
84°
63°
6
86°
64°
7
75°
58°
8
81°
65°
9
82°
64°
10
82°
64°
11
80°
65°
12
81°
65°
13
79°
61°
14
77°
61°
15
80°
64°
16
79°
64°
17
80°
62°
18
76°
63°
19
76°
64°
20
79°
60°
21
75°
63°
22
81°
65°
23
83°
63°
24
80°
61°
25
77°
63°
26
83°
64°
27
82°
64°
28
81°
63°
29
81°
62°
30
79°
61°
31
73°
58°
1
72°
57°
2
76°
61°
3
76°
61°
4
79°
60°
5
79°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Appleton
Appleton's August 2026 forecast shows daily high temperatures ranging from 72° to 92°, with overnight lows between 57° and 72°. 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 Appleton. See also: September | October | November.