S
M
T
W
T
F
S
30
90°
64°
31
80°
65°
1
89°
65°
2
89°
64°
3
88°
67°
4
90°
63°
5
90°
58°
6
82°
54°
7
81°
54°
8
81°
62°
9
82°
59°
10
81°
54°
11
77°
52°
12
75°
55°
13
77°
60°
14
76°
51°
15
84°
50°
16
79°
49°
17
73°
49°
18
73°
50°
19
74°
48°
20
71°
48°
21
72°
49°
22
73°
48°
23
73°
48°
24
75°
53°
25
77°
55°
26
79°
52°
27
80°
55°
28
72°
50°
29
79°
46°
30
78°
48°
1
72°
49°
2
70°
44°
3
69°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Excelsior Springs
Excelsior Springs's September 2026 forecast shows daily high temperatures ranging from 69° to 90°, with overnight lows between 44° and 67°. The average high for September is 79° 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 Excelsior Springs. See also: October | November | December.