S
M
T
W
T
F
S
26
90°
64°
27
90°
63°
28
91°
64°
29
92°
65°
30
92°
63°
31
90°
64°
1
90°
64°
2
89°
65°
3
89°
63°
4
90°
61°
5
88°
61°
6
90°
62°
7
95°
64°
8
95°
66°
9
94°
63°
10
93°
65°
11
92°
61°
12
93°
62°
13
90°
63°
14
89°
61°
15
88°
61°
16
90°
60°
17
94°
60°
18
93°
62°
19
96°
64°
20
94°
64°
21
91°
63°
22
93°
64°
23
93°
61°
24
88°
57°
25
86°
56°
26
87°
57°
27
91°
56°
28
92°
57°
29
90°
59°
30
91°
60°
31
92°
61°
1
90°
60°
2
92°
60°
3
91°
59°
4
85°
57°
5
83°
57°
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 83° to 96°, with overnight lows between 56° and 66°. The average high for August is 91° with an average low of 61°. 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.