S
M
T
W
T
F
S
30
78°
61°
31
78°
61°
1
82°
60°
2
83°
59°
3
82°
52°
4
74°
56°
5
74°
60°
6
81°
56°
7
78°
51°
8
73°
51°
9
72°
57°
10
73°
58°
11
78°
57°
12
80°
57°
13
80°
56°
14
79°
49°
15
76°
49°
16
69°
52°
17
70°
47°
18
70°
46°
19
71°
43°
20
68°
43°
21
67°
47°
22
68°
51°
23
72°
46°
24
73°
52°
25
75°
53°
26
74°
53°
27
75°
52°
28
74°
48°
29
73°
47°
30
66°
46°
1
70°
47°
2
73°
49°
3
65°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in South Freeport
South Freeport's September 2026 forecast shows daily high temperatures ranging from 65° to 83°, with overnight lows between 40° and 61°. The average high for September is 74° with an average low of 52°. 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 South Freeport. See also: October | November | December.
