S
M
T
W
T
F
S
26
61°
44°
27
66°
45°
28
64°
49°
29
55°
41°
30
53°
36°
1
48°
37°
2
58°
34°
3
67°
46°
4
77°
49°
5
57°
43°
6
54°
37°
7
58°
35°
8
68°
36°
9
68°
47°
10
62°
38°
11
58°
38°
12
72°
38°
13
62°
47°
14
72°
41°
15
80°
59°
16
83°
59°
17
73°
54°
18
82°
58°
19
73°
54°
20
59°
46°
21
54°
44°
22
63°
46°
23
79°
52°
24
82°
54°
25
84°
59°
26
84°
63°
27
84°
60°
28
75°
54°
29
85°
51°
30
68°
55°
31
79°
55°
1
77°
48°
2
77°
46°
3
80°
56°
4
82°
64°
5
79°
65°
6
82°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Fort Atkinson
Fort Atkinson's May 2026 forecast shows daily high temperatures ranging from 77° to 82°, with overnight lows between 46° and 65°. The average high for May is 80° with an average low of 57°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Fort Atkinson. See also: June | July | August.
