S
M
T
W
T
F
S
30
88°
72°
31
87°
71°
1
88°
72°
2
82°
68°
3
83°
69°
4
84°
71°
5
87°
71°
6
87°
69°
7
82°
68°
8
83°
68°
9
83°
69°
10
84°
69°
11
83°
68°
12
84°
69°
13
85°
67°
14
82°
66°
15
81°
67°
16
82°
66°
17
84°
68°
18
84°
69°
19
81°
69°
20
83°
68°
21
Hist. Avg.
82°
66°
22
Hist. Avg.
82°
65°
23
Hist. Avg.
82°
65°
24
Hist. Avg.
82°
64°
25
Hist. Avg.
81°
64°
26
Hist. Avg.
81°
64°
27
Hist. Avg.
81°
63°
28
Hist. Avg.
80°
63°
29
Hist. Avg.
80°
62°
30
Hist. Avg.
80°
62°
1
Hist. Avg.
80°
62°
2
Hist. Avg.
79°
61°
3
Hist. Avg.
79°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in The Dunes
The Dunes's September 2026 forecast shows daily high temperatures ranging from 81° to 88°, with overnight lows between 66° and 72°. The average high for September is 84° with an average low of 69°. 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 The Dunes. See also: October | November | December.
