S
M
T
W
T
F
S
30
57°
50°
31
58°
48°
1
57°
46°
2
63°
46°
3
61°
50°
4
64°
51°
5
64°
50°
6
61°
49°
7
64°
49°
8
62°
50°
9
65°
48°
10
53°
45°
11
53°
42°
12
53°
42°
13
54°
43°
14
53°
43°
15
52°
41°
16
52°
41°
17
53°
40°
18
53°
40°
19
54°
46°
20
52°
42°
21
53°
40°
22
52°
43°
23
53°
44°
24
51°
43°
25
51°
43°
26
52°
39°
27
50°
39°
28
50°
40°
29
50°
39°
30
50°
38°
1
50°
39°
2
48°
40°
3
48°
39°
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 65°, with overnight lows between 38° and 51°. The average high for September is 55° with an average low of 44°. 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.
