S
M
T
W
T
F
S
30
82°
55°
31
79°
54°
1
76°
50°
2
82°
52°
3
75°
57°
4
84°
57°
5
84°
66°
6
91°
64°
7
75°
55°
8
71°
53°
9
72°
48°
10
83°
50°
11
64°
44°
12
58°
41°
13
57°
41°
14
54°
39°
15
60°
37°
16
62°
38°
17
58°
36°
18
66°
40°
19
66°
39°
20
67°
41°
21
68°
40°
22
72°
48°
23
65°
47°
24
61°
46°
25
70°
46°
26
70°
47°
27
69°
46°
28
69°
45°
29
58°
43°
30
55°
37°
1
55°
38°
2
54°
36°
3
54°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Stanley
Stanley's September 2026 forecast shows daily high temperatures ranging from 54° to 83°, with overnight lows between 36° and 53°. The average high for September is 64° with an average low of 43°. 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.