S
M
T
W
T
F
S
30
82°
64°
31
85°
55°
1
85°
54°
2
76°
54°
3
77°
61°
4
80°
60°
5
85°
53°
6
81°
52°
7
76°
53°
8
77°
60°
9
78°
59°
10
78°
58°
11
76°
54°
12
74°
52°
13
74°
49°
14
73°
50°
15
73°
55°
16
74°
57°
17
77°
57°
18
81°
58°
19
82°
55°
20
76°
56°
21
80°
55°
22
75°
48°
23
72°
48°
24
71°
47°
25
70°
47°
26
71°
47°
27
78°
54°
28
79°
55°
29
Hist. Avg.
70°
47°
30
Hist. Avg.
69°
46°
1
Hist. Avg.
69°
46°
2
Hist. Avg.
68°
45°
3
Hist. Avg.
68°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Hiawatha
Hiawatha's September 2026 forecast shows daily high temperatures ranging from 70° to 85°, with overnight lows between 47° and 64°. The average high for September is 77° with an average low of 54°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Hiawatha. See also: October | November | December.
