S
M
T
W
T
F
S
30
91°
66°
31
89°
66°
1
89°
61°
2
88°
57°
3
80°
61°
4
86°
66°
5
88°
66°
6
89°
63°
7
88°
64°
8
86°
63°
9
83°
61°
10
82°
56°
11
77°
55°
12
78°
57°
13
79°
62°
14
83°
62°
15
82°
61°
16
80°
62°
17
80°
53°
18
82°
50°
19
74°
50°
20
73°
54°
21
74°
58°
22
78°
60°
23
80°
60°
24
81°
59°
25
82°
49°
26
80°
50°
27
71°
49°
28
69°
48°
29
70°
49°
30
70°
58°
1
68°
54°
2
70°
52°
3
Hist. Avg.
72°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Harrisonville
Harrisonville's September 2026 forecast shows daily high temperatures ranging from 68° to 91°, with overnight lows between 48° and 66°. The average high for September is 80° 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 September weather will actually feel in Harrisonville. See also: October | November | December.
