S
M
T
W
T
F
S
30
69°
53°
31
69°
53°
1
71°
54°
2
70°
53°
3
70°
53°
4
69°
52°
5
70°
53°
6
69°
51°
7
68°
51°
8
66°
50°
9
65°
50°
10
66°
48°
11
56°
44°
12
54°
40°
13
52°
43°
14
59°
37°
15
63°
47°
16
62°
43°
17
63°
49°
18
66°
47°
19
67°
50°
20
66°
42°
21
64°
44°
22
61°
41°
23
63°
47°
24
63°
45°
25
64°
37°
26
59°
43°
27
57°
37°
28
58°
38°
29
51°
36°
30
52°
29°
1
45°
28°
2
43°
29°
3
40°
30°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Flin Flon
Flin Flon's September 2026 forecast shows daily high temperatures ranging from 40° to 71°, with overnight lows between 28° and 54°. The average high for September is 61° with an average low of 44°. 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 Flin Flon. See also: October | November | December.