S
M
T
W
T
F
S
30
73°
55°
31
76°
50°
1
74°
52°
2
69°
61°
3
76°
58°
4
74°
58°
5
67°
49°
6
71°
49°
7
75°
50°
8
70°
47°
9
70°
56°
10
68°
48°
11
64°
46°
12
64°
50°
13
66°
50°
14
71°
52°
15
74°
52°
16
73°
44°
17
70°
46°
18
62°
42°
19
68°
47°
20
69°
47°
21
69°
46°
22
68°
47°
23
68°
45°
24
62°
42°
25
65°
45°
26
67°
47°
27
65°
47°
28
59°
43°
29
56°
40°
30
60°
41°
1
56°
36°
2
55°
37°
3
56°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in East Topsham
East Topsham's September 2026 forecast shows daily high temperatures ranging from 55° to 76°, with overnight lows between 36° and 58°. The average high for September is 66° with an average low of 47°. 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 East Topsham. See also: October | November | December.
