S
M
T
W
T
F
S
30
83°
59°
31
83°
56°
1
79°
56°
2
75°
59°
3
77°
59°
4
76°
54°
5
78°
54°
6
79°
60°
7
80°
56°
8
79°
55°
9
80°
58°
10
74°
58°
11
78°
56°
12
74°
52°
13
72°
52°
14
73°
54°
15
75°
55°
16
78°
51°
17
78°
55°
18
77°
52°
19
72°
54°
20
72°
51°
21
70°
49°
22
71°
49°
23
74°
52°
24
75°
54°
25
76°
55°
26
75°
48°
27
72°
48°
28
70°
47°
29
70°
47°
30
69°
46°
1
69°
50°
2
Hist. Avg.
67°
45°
3
Hist. Avg.
67°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Oldtown
Oldtown's September 2026 forecast shows daily high temperatures ranging from 69° to 83°, with overnight lows between 46° and 60°. The average high for September is 75° with an average low of 53°. 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 Oldtown. See also: October | November | December.
