S
M
T
W
T
F
S
30
75°
55°
31
70°
51°
1
68°
53°
2
68°
51°
3
69°
51°
4
68°
52°
5
68°
56°
6
71°
57°
7
73°
56°
8
75°
53°
9
74°
54°
10
69°
56°
11
75°
55°
12
74°
54°
13
73°
55°
14
72°
53°
15
75°
45°
16
72°
44°
17
65°
43°
18
65°
49°
19
68°
50°
20
68°
51°
21
69°
51°
22
67°
50°
23
70°
51°
24
71°
49°
25
68°
51°
26
71°
51°
27
71°
42°
28
70°
39°
29
69°
40°
30
59°
44°
1
58°
39°
2
61°
44°
3
59°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Biddeford Pool
Biddeford Pool's September 2026 forecast shows daily high temperatures ranging from 58° to 75°, with overnight lows between 39° and 57°. The average high for September is 69° with an average low of 50°. 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 Biddeford Pool. See also: October | November | December.
