S
M
T
W
T
F
S
30
62°
52°
31
62°
52°
1
68°
50°
2
65°
51°
3
70°
52°
4
71°
52°
5
71°
42°
6
70°
40°
7
59°
41°
8
59°
46°
9
60°
47°
10
59°
48°
11
59°
45°
12
58°
40°
13
57°
39°
14
56°
37°
15
54°
35°
16
57°
37°
17
59°
39°
18
54°
37°
19
Hist. Avg.
56°
40°
20
Hist. Avg.
55°
40°
21
Hist. Avg.
55°
40°
22
Hist. Avg.
55°
40°
23
Hist. Avg.
54°
39°
24
Hist. Avg.
54°
39°
25
Hist. Avg.
53°
39°
26
Hist. Avg.
53°
38°
27
Hist. Avg.
53°
38°
28
Hist. Avg.
52°
38°
29
Hist. Avg.
52°
37°
30
Hist. Avg.
51°
37°
1
Hist. Avg.
51°
37°
2
Hist. Avg.
51°
36°
3
Hist. Avg.
50°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Île-à-la-Crosse
Île-à-la-Crosse's September 2026 forecast shows daily high temperatures ranging from 54° to 71°, with overnight lows between 35° and 52°. The average high for September is 62° 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 Île-à-la-Crosse. See also: October | November | December.
