S
M
T
W
T
F
S
26
79°
65°
27
75°
58°
28
79°
62°
29
80°
59°
30
76°
57°
31
79°
59°
1
77°
58°
2
78°
55°
3
77°
56°
4
75°
54°
5
76°
56°
6
78°
57°
7
79°
58°
8
81°
60°
9
82°
57°
10
79°
61°
11
82°
63°
12
82°
64°
13
81°
64°
14
81°
57°
15
80°
55°
16
74°
58°
17
76°
59°
18
73°
57°
19
73°
55°
20
72°
56°
21
74°
63°
22
79°
61°
23
80°
62°
24
81°
59°
25
80°
54°
26
77°
54°
27
72°
55°
28
72°
55°
29
73°
61°
30
78°
62°
31
79°
61°
1
78°
56°
2
75°
53°
3
77°
55°
4
75°
57°
5
77°
58°
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 72° to 82°, with overnight lows between 53° and 65°. The average high for August is 77° with an average low of 58°. 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.
