S
M
T
W
T
F
S
30
74°
44°
31
73°
47°
1
74°
46°
2
71°
46°
3
64°
49°
4
68°
59°
5
66°
52°
6
54°
49°
7
69°
44°
8
66°
37°
9
60°
33°
10
73°
55°
11
65°
41°
12
69°
37°
13
63°
49°
14
73°
50°
15
69°
39°
16
65°
38°
17
68°
44°
18
71°
49°
19
62°
44°
20
59°
34°
21
65°
37°
22
64°
36°
23
61°
33°
24
66°
36°
25
68°
50°
26
62°
54°
27
62°
51°
28
63°
53°
29
64°
50°
30
66°
51°
1
65°
48°
2
65°
46°
3
63°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Saint John West
Saint John West's September 2026 forecast shows daily high temperatures ranging from 61° to 68°, with overnight lows between 33° and 54°. 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 Saint John West. See also: October | November | December.
