S
M
T
W
T
F
S
30
74°
41°
31
71°
38°
1
73°
48°
2
71°
53°
3
62°
56°
4
64°
53°
5
64°
47°
6
68°
46°
7
71°
48°
8
67°
49°
9
65°
47°
10
67°
50°
11
69°
47°
12
66°
49°
13
66°
49°
14
67°
46°
15
62°
51°
16
67°
52°
17
66°
51°
18
59°
44°
19
59°
42°
20
64°
48°
21
67°
50°
22
67°
50°
23
68°
49°
24
65°
49°
25
65°
48°
26
66°
48°
27
64°
47°
28
65°
44°
29
56°
41°
30
53°
39°
1
52°
38°
2
52°
43°
3
56°
45°
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 52° to 73°, with overnight lows between 38° and 56°. The average high for September is 64° 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 Edmundston. See also: October | November | December.
