S
M
T
W
T
F
S
30
100°
80°
31
101°
80°
1
100°
80°
2
100°
80°
3
99°
80°
4
99°
79°
5
99°
78°
6
97°
77°
7
95°
77°
8
93°
74°
9
92°
73°
10
91°
70°
11
84°
64°
12
84°
65°
13
85°
66°
14
86°
68°
15
86°
67°
16
85°
68°
17
86°
68°
18
86°
67°
19
85°
69°
20
86°
68°
21
85°
68°
22
85°
67°
23
84°
67°
24
84°
66°
25
83°
65°
26
83°
64°
27
84°
65°
28
83°
64°
29
82°
63°
30
83°
64°
1
83°
63°
2
82°
63°
3
82°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Kansas City
Kansas City's September 2026 forecast shows daily high temperatures ranging from 82° to 100°, with overnight lows between 62° and 80°. The average high for September is 88° with an average low of 69°. 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 Kansas City. See also: October | November | December.
