S
M
T
W
T
F
S
30
76°
55°
31
70°
55°
1
73°
51°
2
70°
49°
3
68°
57°
4
71°
60°
5
60°
54°
6
59°
51°
7
61°
52°
8
71°
48°
9
68°
53°
10
72°
58°
11
72°
48°
12
71°
51°
13
72°
56°
14
75°
54°
15
72°
53°
16
72°
51°
17
69°
48°
18
67°
49°
19
67°
47°
20
64°
49°
21
65°
48°
22
63°
52°
23
65°
51°
24
68°
50°
25
64°
51°
26
66°
49°
27
60°
48°
28
61°
50°
29
67°
50°
30
67°
49°
1
66°
50°
2
66°
49°
3
64°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lower Sackville
Lower Sackville's September 2026 forecast shows daily high temperatures ranging from 60° to 75°, with overnight lows between 47° and 58°. The average high for September is 67° 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 Lower Sackville. See also: October | November | December.