S
M
T
W
T
F
S
30
74°
41°
31
71°
38°
1
75°
41°
2
73°
38°
3
63°
51°
4
69°
58°
5
70°
42°
6
66°
42°
7
75°
42°
8
61°
33°
9
62°
30°
10
72°
49°
11
58°
34°
12
74°
31°
13
73°
46°
14
63°
38°
15
65°
32°
16
73°
40°
17
66°
36°
18
61°
40°
19
59°
34°
20
56°
30°
21
59°
32°
22
64°
28°
23
65°
26°
24
76°
31°
25
76°
33°
26
75°
33°
27
72°
40°
28
59°
35°
29
60°
38°
30
65°
38°
1
75°
59°
2
64°
41°
3
57°
32°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Edmundston
Edmundston's September 2026 forecast shows daily high temperatures ranging from 57° to 75°, with overnight lows between 32° and 59°. The average high for September is 65° with an average low of 44°. 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 Edmundston. See also: October | November | December.
