S
M
T
W
T
F
S
26
30°
18°
27
32°
19°
28
41°
8°
29
49°
16°
30
55°
32°
1
51°
38°
2
48°
30°
3
40°
28°
4
37°
19°
5
39°
15°
6
44°
17°
7
47°
29°
8
46°
23°
9
44°
21°
10
56°
28°
11
61°
32°
12
55°
33°
13
65°
31°
14
45°
27°
15
40°
20°
16
45°
32°
17
48°
24°
18
58°
31°
19
65°
35°
20
63°
38°
21
63°
42°
22
64°
41°
23
67°
42°
24
66°
41°
25
71°
42°
26
58°
38°
27
65°
40°
28
69°
42°
29
62°
39°
30
62°
43°
31
63°
41°
1
66°
45°
2
67°
44°
3
67°
37°
4
56°
36°
5
57°
36°
6
60°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Fond-du-Lac
Fond-du-Lac's May 2026 forecast shows daily high temperatures ranging from 45° to 71°, with overnight lows between 24° and 45°. The average high for May is 62° with an average low of 39°. 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 Fond-du-Lac. See also: June | July | August.
