S
M
T
W
T
F
S
26
87°
69°
27
86°
69°
28
87°
68°
29
86°
68°
30
85°
64°
31
79°
61°
1
79°
66°
2
78°
66°
3
79°
64°
4
83°
68°
5
85°
68°
6
85°
67°
7
80°
64°
8
78°
64°
9
79°
65°
10
82°
63°
11
83°
66°
12
84°
67°
13
86°
68°
14
87°
67°
15
86°
68°
16
87°
63°
17
86°
59°
18
78°
57°
19
77°
57°
20
77°
56°
21
78°
57°
22
78°
57°
23
79°
58°
24
78°
58°
25
81°
61°
26
83°
61°
27
83°
57°
28
77°
56°
29
78°
59°
30
82°
63°
31
81°
56°
1
82°
56°
2
77°
55°
3
76°
59°
4
79°
63°
5
83°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Manteno
Manteno's August 2026 forecast shows daily high temperatures ranging from 76° to 87°, with overnight lows between 55° and 69°. The average high for August is 82° with an average low of 62°. 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 Manteno. See also: September | October | November.