S
M
T
W
T
F
S
30
57°
47°
31
58°
47°
1
56°
46°
2
56°
46°
3
57°
47°
4
56°
47°
5
55°
46°
6
55°
43°
7
54°
43°
8
53°
42°
9
54°
43°
10
57°
42°
11
59°
43°
12
57°
47°
13
54°
46°
14
54°
46°
15
53°
44°
16
53°
44°
17
54°
45°
18
53°
44°
19
52°
45°
20
52°
47°
21
54°
44°
22
52°
41°
23
51°
40°
24
51°
40°
25
52°
41°
26
54°
40°
27
50°
39°
28
48°
40°
29
49°
39°
30
50°
40°
1
49°
39°
2
49°
39°
3
50°
38°
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 48° to 59°, with overnight lows between 38° and 47°. The average high for September is 53° 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.
