S
M
T
W
T
F
S
30
57°
50°
31
55°
50°
1
64°
45°
2
67°
41°
3
71°
38°
4
70°
38°
5
67°
38°
6
61°
52°
7
64°
51°
8
56°
54°
9
58°
47°
10
64°
44°
11
66°
39°
12
67°
36°
13
64°
40°
14
65°
42°
15
57°
39°
16
54°
52°
17
58°
47°
18
54°
46°
19
58°
53°
20
57°
49°
21
52°
47°
22
51°
47°
23
54°
47°
24
58°
36°
25
58°
42°
26
50°
45°
27
51°
46°
28
51°
43°
29
52°
44°
30
53°
41°
1
49°
41°
2
53°
43°
3
54°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Tee Harbor
Tee Harbor's September 2026 forecast shows daily high temperatures ranging from 49° to 58°, with overnight lows between 41° and 46°. The average high for September is 52° with an average low of 43°. 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 Tee Harbor. See also: October | November | December.
