S
M
T
W
T
F
S
26
91°
69°
27
84°
72°
28
81°
60°
29
84°
55°
30
89°
55°
31
74°
63°
1
74°
61°
2
79°
58°
3
82°
52°
4
84°
60°
5
77°
65°
6
82°
61°
7
84°
65°
8
80°
59°
9
77°
58°
10
83°
65°
11
82°
67°
12
83°
66°
13
76°
64°
14
81°
65°
15
78°
68°
16
78°
60°
17
78°
57°
18
79°
66°
19
78°
59°
20
78°
58°
21
76°
60°
22
79°
61°
23
75°
60°
24
74°
60°
25
75°
56°
26
79°
59°
27
82°
64°
28
74°
57°
29
77°
59°
30
80°
62°
31
82°
63°
1
83°
63°
2
83°
62°
3
81°
62°
4
81°
61°
5
80°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Fort Atkinson
Fort Atkinson's August 2026 forecast shows daily high temperatures ranging from 74° to 83°, with overnight lows between 56° and 68°. The average high for August is 79° 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 Fort Atkinson. See also: September | October | November.
