S
M
T
W
T
F
S
30
87°
69°
31
87°
70°
1
88°
68°
2
88°
66°
3
87°
65°
4
86°
65°
5
86°
66°
6
87°
67°
7
88°
65°
8
87°
67°
9
90°
67°
10
90°
66°
11
89°
65°
12
91°
67°
13
90°
69°
14
90°
67°
15
89°
68°
16
90°
68°
17
88°
67°
18
88°
67°
19
87°
66°
20
87°
66°
21
88°
65°
22
87°
66°
23
84°
66°
24
Hist. Avg.
86°
65°
25
Hist. Avg.
86°
65°
26
Hist. Avg.
85°
64°
27
Hist. Avg.
85°
64°
28
Hist. Avg.
85°
64°
29
Hist. Avg.
85°
63°
30
Hist. Avg.
84°
63°
1
Hist. Avg.
84°
62°
2
Hist. Avg.
84°
62°
3
Hist. Avg.
83°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Stanley
Stanley's September 2026 forecast shows daily high temperatures ranging from 84° to 91°, with overnight lows between 65° and 70°. The average high for September is 88° with an average low of 67°. 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 Stanley. See also: October | November | December.