S
M
T
W
T
F
S
30
76°
53°
31
78°
54°
1
79°
50°
2
75°
43°
3
67°
52°
4
71°
53°
5
66°
43°
6
69°
40°
7
65°
41°
8
66°
42°
9
65°
49°
10
69°
50°
11
72°
51°
12
70°
42°
13
68°
40°
14
62°
38°
15
60°
39°
16
61°
38°
17
63°
43°
18
68°
36°
19
60°
35°
20
58°
42°
21
60°
47°
22
66°
41°
23
66°
45°
24
64°
47°
25
67°
47°
26
67°
41°
27
66°
35°
28
57°
36°
29
54°
40°
30
54°
40°
1
55°
38°
2
56°
44°
3
53°
30°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Bemidji
Bemidji's September 2026 forecast shows daily high temperatures ranging from 53° to 79°, with overnight lows between 30° and 54°. The average high for September is 65° with an average low of 43°. 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 Bemidji. See also: October | November | December.
