S
M
T
W
T
F
S
30
78°
55°
31
68°
60°
1
74°
60°
2
71°
61°
3
75°
62°
4
76°
62°
5
75°
55°
6
62°
52°
7
60°
50°
8
55°
51°
9
70°
51°
10
65°
57°
11
60°
47°
12
54°
45°
13
63°
44°
14
59°
41°
15
56°
42°
16
58°
39°
17
59°
34°
18
70°
49°
19
61°
41°
20
68°
44°
21
72°
51°
22
71°
54°
23
70°
53°
24
63°
49°
25
72°
46°
26
70°
45°
27
61°
45°
28
66°
42°
29
66°
45°
30
59°
39°
1
53°
41°
2
52°
38°
3
51°
36°
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 51° to 70°, with overnight lows between 36° and 45°. The average high for September is 60° with an average low of 41°. 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.