S
M
T
W
T
F
S
30
78°
66°
31
81°
68°
1
83°
68°
2
84°
67°
3
84°
63°
4
83°
60°
5
77°
61°
6
76°
66°
7
79°
66°
8
81°
65°
9
82°
66°
10
79°
65°
11
82°
66°
12
82°
66°
13
81°
65°
14
81°
66°
15
82°
66°
16
82°
64°
17
81°
65°
18
80°
60°
19
80°
58°
20
76°
56°
21
73°
55°
22
71°
62°
23
74°
59°
24
78°
55°
25
71°
55°
26
71°
56°
27
72°
55°
28
76°
60°
29
75°
59°
30
76°
59°
1
75°
60°
2
74°
56°
3
68°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Stone Harbor
Stone Harbor's September 2026 forecast shows daily high temperatures ranging from 68° to 84°, with overnight lows between 55° and 68°. The average high for September is 78° with an average low of 62°. 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 Stone Harbor. See also: October | November | December.
