S
M
T
W
T
F
S
30
78°
66°
31
87°
58°
1
82°
57°
2
85°
60°
3
88°
64°
4
85°
63°
5
84°
61°
6
81°
65°
7
81°
64°
8
87°
57°
9
76°
51°
10
81°
44°
11
87°
62°
12
68°
47°
13
68°
40°
14
60°
39°
15
69°
46°
16
71°
41°
17
71°
49°
18
60°
56°
19
61°
54°
20
65°
50°
21
57°
45°
22
63°
43°
23
67°
41°
24
59°
56°
25
65°
57°
26
61°
56°
27
72°
51°
28
N/A
29
64°
60°
30
78°
55°
1
64°
41°
2
62°
32°
3
63°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Freeport
Freeport's September 2026 forecast shows daily high temperatures ranging from 63° to 63°, with overnight lows between 41° and 41°. The average high for September is 63° with an average low of 41°. 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 Freeport. See also: October | November | December.
