S
M
T
W
T
F
S
30
88°
67°
31
90°
67°
1
90°
66°
2
89°
67°
3
90°
66°
4
90°
67°
5
89°
65°
6
88°
61°
7
87°
57°
8
79°
61°
9
78°
63°
10
77°
64°
11
85°
63°
12
83°
64°
13
85°
61°
14
85°
54°
15
80°
55°
16
73°
53°
17
74°
53°
18
75°
57°
19
78°
51°
20
73°
51°
21
73°
54°
22
74°
58°
23
78°
58°
24
80°
60°
25
81°
60°
26
80°
58°
27
81°
59°
28
79°
55°
29
77°
54°
30
77°
53°
1
76°
54°
2
79°
56°
3
70°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Olathe Township
Olathe Township's September 2026 forecast shows daily high temperatures ranging from 70° to 90°, with overnight lows between 45° and 67°. The average high for September is 81° with an average low of 59°. 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 Olathe Township. See also: October | November | December.
