S
M
T
W
T
F
S
30
75°
57°
31
79°
52°
1
71°
60°
2
67°
60°
3
66°
60°
4
79°
57°
5
70°
53°
6
73°
54°
7
73°
56°
8
74°
55°
9
76°
60°
10
74°
59°
11
71°
57°
12
72°
56°
13
71°
54°
14
70°
52°
15
70°
52°
16
73°
56°
17
75°
55°
18
66°
51°
19
69°
48°
20
70°
53°
21
74°
56°
22
74°
56°
23
73°
54°
24
72°
53°
25
72°
52°
26
73°
54°
27
72°
53°
28
72°
52°
29
69°
48°
30
61°
45°
1
60°
42°
2
62°
51°
3
69°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Bear Island
Bear Island's September 2026 forecast shows daily high temperatures ranging from 60° to 79°, with overnight lows between 42° and 60°. The average high for September is 71° with an average low of 54°. 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 Bear Island. See also: October | November | December.
