S
M
T
W
T
F
S
26
69°
57°
27
75°
59°
28
78°
53°
29
77°
49°
30
68°
50°
31
69°
55°
1
74°
59°
2
77°
59°
3
77°
58°
4
76°
60°
5
79°
59°
6
79°
56°
7
73°
55°
8
72°
49°
9
67°
50°
10
68°
55°
11
72°
56°
12
69°
57°
13
73°
56°
14
73°
53°
15
67°
51°
16
65°
56°
17
70°
54°
18
73°
46°
19
65°
49°
20
71°
50°
21
72°
53°
22
70°
45°
23
63°
46°
24
64°
46°
25
62°
47°
26
63°
50°
27
63°
49°
28
64°
47°
29
62°
46°
30
60°
46°
31
60°
51°
1
63°
43°
2
59°
51°
3
60°
45°
4
64°
40°
5
57°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Fond-du-Lac
Fond-du-Lac's August 2026 forecast shows daily high temperatures ranging from 57° to 79°, with overnight lows between 38° and 60°. The average high for August is 69° with an average low of 51°. 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 Fond-du-Lac. See also: September | October | November.
