S
M
T
W
T
F
S
30
89°
57°
31
86°
59°
1
89°
59°
2
89°
58°
3
88°
57°
4
86°
53°
5
84°
52°
6
82°
53°
7
81°
50°
8
79°
51°
9
79°
52°
10
81°
53°
11
81°
54°
12
83°
54°
13
85°
55°
14
84°
51°
15
81°
50°
16
79°
54°
17
79°
56°
18
83°
56°
19
82°
55°
20
84°
55°
21
85°
54°
22
79°
53°
23
79°
48°
24
77°
47°
25
76°
46°
26
74°
48°
27
74°
50°
28
77°
48°
29
77°
48°
30
81°
50°
1
81°
50°
2
Hist. Avg.
82°
50°
3
Hist. Avg.
82°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Deer Haven
Deer Haven's September 2026 forecast shows daily high temperatures ranging from 74° to 89°, with overnight lows between 46° and 59°. The average high for September is 82° with an average low of 53°. 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 Deer Haven. See also: October | November | December.
