S
M
T
W
T
F
S
30
71°
62°
31
76°
65°
1
81°
68°
2
78°
61°
3
75°
54°
4
74°
52°
5
71°
51°
6
72°
51°
7
75°
48°
8
76°
52°
9
73°
64°
10
71°
50°
11
72°
53°
12
79°
58°
13
68°
48°
14
64°
56°
15
70°
53°
16
65°
51°
17
66°
52°
18
63°
50°
19
64°
50°
20
64°
51°
21
62°
49°
22
65°
50°
23
64°
37°
24
66°
53°
25
58°
50°
26
67°
52°
27
68°
52°
28
67°
51°
29
65°
51°
30
66°
50°
1
66°
50°
2
62°
49°
3
63°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Northern Bruce Peninsula
Northern Bruce Peninsula's September 2026 forecast shows daily high temperatures ranging from 58° to 79°, with overnight lows between 37° and 58°. The average high for September is 66° with an average low of 51°. 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 Northern Bruce Peninsula. See also: October | November | December.