S
M
T
W
T
F
S
30
100°
73°
31
99°
75°
1
99°
75°
2
98°
75°
3
98°
72°
4
98°
71°
5
100°
72°
6
100°
73°
7
102°
73°
8
99°
80°
9
98°
76°
10
85°
73°
11
91°
71°
12
92°
73°
13
94°
71°
14
97°
79°
15
N/A
16
99°
73°
17
96°
70°
18
96°
69°
19
97°
71°
20
94°
70°
21
91°
66°
22
88°
63°
23
90°
64°
24
83°
60°
25
85°
61°
26
83°
61°
27
84°
64°
28
78°
55°
29
82°
62°
30
82°
62°
1
83°
61°
2
82°
62°
3
81°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Stilwell
Stilwell's September 2026 forecast shows daily high temperatures ranging from 78° to 99°, with overnight lows between 55° and 73°. The average high for September is 87° with an average low of 64°. 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 Stilwell. See also: October | November | December.
