S
M
T
W
T
F
S
26
83°
65°
27
83°
65°
28
81°
64°
29
83°
65°
30
82°
64°
31
80°
63°
1
76°
60°
2
75°
60°
3
76°
63°
4
77°
63°
5
79°
62°
6
82°
63°
7
82°
64°
8
80°
64°
9
82°
63°
10
81°
63°
11
82°
62°
12
83°
64°
13
83°
64°
14
85°
55°
15
82°
56°
16
78°
58°
17
77°
57°
18
82°
57°
19
83°
55°
20
76°
52°
21
74°
53°
22
75°
54°
23
74°
54°
24
75°
55°
25
76°
60°
26
74°
58°
27
81°
54°
28
82°
53°
29
74°
52°
30
72°
52°
31
73°
53°
1
72°
52°
2
71°
51°
3
72°
51°
4
72°
52°
5
73°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Horicon
Horicon's August 2026 forecast shows daily high temperatures ranging from 71° to 85°, with overnight lows between 51° and 65°. The average high for August is 78° 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 Horicon. See also: September | October | November.
