S
M
T
W
T
F
S
30
69°
53°
31
70°
58°
1
71°
61°
2
70°
56°
3
73°
60°
4
77°
53°
5
75°
54°
6
70°
52°
7
67°
50°
8
66°
59°
9
71°
55°
10
72°
51°
11
66°
49°
12
65°
50°
13
66°
52°
14
65°
49°
15
66°
50°
16
62°
48°
17
63°
46°
18
61°
47°
19
62°
48°
20
63°
49°
21
65°
48°
22
67°
53°
23
70°
54°
24
70°
52°
25
69°
55°
26
71°
47°
27
69°
44°
28
60°
52°
29
61°
52°
30
70°
50°
1
68°
51°
2
65°
47°
3
63°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Glen Arbor
Glen Arbor's September 2026 forecast shows daily high temperatures ranging from 60° to 77°, with overnight lows between 44° and 61°. The average high for September is 67° with an average low of 51°. 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 Glen Arbor. See also: October | November | December.
