S
M
T
W
T
F
S
30
81°
56°
31
77°
49°
1
80°
47°
2
78°
47°
3
65°
59°
4
80°
60°
5
72°
53°
6
69°
50°
7
79°
49°
8
74°
46°
9
64°
40°
10
82°
61°
11
71°
53°
12
73°
52°
13
65°
57°
14
68°
42°
15
69°
46°
16
72°
50°
17
67°
52°
18
69°
47°
19
66°
46°
20
62°
43°
21
64°
44°
22
66°
44°
23
66°
48°
24
68°
41°
25
60°
41°
26
60°
41°
27
59°
47°
28
59°
46°
29
60°
46°
30
60°
45°
1
59°
48°
2
62°
48°
3
66°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Old Town
Old Town's September 2026 forecast shows daily high temperatures ranging from 59° to 73°, with overnight lows between 41° and 57°. The average high for September is 65° with an average low of 46°. 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 Old Town. See also: October | November | December.
