S
M
T
W
T
F
S
30
78°
43°
31
78°
47°
1
81°
61°
2
76°
56°
3
68°
56°
4
76°
48°
5
73°
43°
6
77°
44°
7
71°
49°
8
64°
52°
9
78°
53°
10
58°
36°
11
77°
35°
12
76°
56°
13
57°
44°
14
62°
37°
15
66°
44°
16
66°
41°
17
68°
41°
18
53°
30°
19
62°
28°
20
56°
28°
21
58°
24°
22
64°
27°
23
68°
30°
24
67°
37°
25
69°
45°
26
68°
42°
27
70°
41°
28
70°
42°
29
72°
50°
30
63°
48°
1
60°
43°
2
59°
40°
3
58°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Iroquois Falls
Iroquois Falls's September 2026 forecast shows daily high temperatures ranging from 58° to 72°, with overnight lows between 37° and 50°. The average high for September is 66° 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 Iroquois Falls. See also: October | November | December.
