S
M
T
W
T
F
S
26
81°
66°
27
83°
67°
28
74°
66°
29
76°
64°
30
80°
63°
31
81°
67°
1
80°
65°
2
79°
64°
3
80°
65°
4
80°
66°
5
80°
66°
6
79°
67°
7
79°
65°
8
78°
62°
9
81°
65°
10
80°
66°
11
78°
65°
12
81°
67°
13
82°
65°
14
78°
65°
15
78°
64°
16
79°
66°
17
82°
66°
18
81°
65°
19
76°
65°
20
79°
64°
21
76°
64°
22
76°
65°
23
81°
64°
24
81°
58°
25
73°
60°
26
75°
64°
27
79°
65°
28
80°
64°
29
79°
63°
30
76°
59°
31
72°
57°
1
71°
58°
2
71°
57°
3
72°
59°
4
74°
62°
5
79°
63°
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 71° to 83°, with overnight lows between 57° and 67°. The average high for August is 78° with an average low of 64°. 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.