S
M
T
W
T
F
S
30
86°
65°
31
87°
65°
1
88°
64°
2
87°
65°
3
84°
63°
4
84°
64°
5
87°
64°
6
88°
63°
7
88°
64°
8
89°
65°
9
89°
65°
10
87°
63°
11
87°
65°
12
88°
64°
13
88°
64°
14
81°
52°
15
76°
58°
16
78°
60°
17
76°
55°
18
86°
59°
19
86°
59°
20
85°
58°
21
83°
54°
22
74°
56°
23
72°
57°
24
74°
57°
25
74°
56°
26
79°
57°
27
82°
57°
28
82°
56°
29
81°
56°
30
82°
52°
1
81°
44°
2
74°
43°
3
67°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Stoy
Stoy's September 2026 forecast shows daily high temperatures ranging from 67° to 89°, with overnight lows between 43° and 65°. The average high for September is 82° 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 Stoy. See also: October | November | December.