S
M
T
W
T
F
S
26
90°
69°
27
89°
69°
28
90°
68°
29
89°
68°
30
89°
67°
31
88°
67°
1
88°
68°
2
89°
67°
3
88°
68°
4
89°
68°
5
88°
67°
6
87°
67°
7
86°
66°
8
85°
66°
9
84°
66°
10
81°
66°
11
85°
68°
12
87°
66°
13
89°
65°
14
87°
68°
15
89°
66°
16
90°
61°
17
86°
58°
18
80°
56°
19
77°
55°
20
78°
56°
21
79°
57°
22
79°
56°
23
80°
57°
24
79°
60°
25
82°
63°
26
85°
56°
27
79°
56°
28
78°
55°
29
81°
59°
30
82°
64°
31
85°
55°
1
85°
54°
2
76°
54°
3
77°
61°
4
80°
60°
5
85°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Hiawatha
Hiawatha's August 2026 forecast shows daily high temperatures ranging from 76° to 90°, with overnight lows between 53° and 69°. The average high for August is 84° 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 Hiawatha. See also: September | October | November.
