S
M
T
W
T
F
S
26
86°
67°
27
85°
67°
28
86°
66°
29
86°
66°
30
85°
61°
31
79°
59°
1
79°
63°
2
77°
64°
3
78°
63°
4
83°
66°
5
85°
66°
6
84°
65°
7
80°
62°
8
78°
62°
9
78°
64°
10
80°
60°
11
82°
63°
12
83°
65°
13
85°
66°
14
86°
65°
15
85°
66°
16
87°
64°
17
85°
57°
18
78°
56°
19
76°
55°
20
76°
55°
21
77°
56°
22
77°
56°
23
78°
57°
24
78°
56°
25
80°
58°
26
83°
60°
27
83°
55°
28
77°
54°
29
77°
55°
30
79°
60°
31
80°
55°
1
81°
54°
2
77°
53°
3
76°
58°
4
79°
61°
5
83°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Monon
Monon's August 2026 forecast shows daily high temperatures ranging from 76° to 87°, with overnight lows between 53° and 67°. The average high for August is 81° with an average low of 60°. 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 Monon. See also: September | October | November.