S
M
T
W
T
F
S
30
62°
49°
31
61°
45°
1
52°
42°
2
51°
40°
3
51°
46°
4
60°
48°
5
60°
47°
6
56°
46°
7
55°
46°
8
55°
45°
9
56°
44°
10
53°
45°
11
57°
43°
12
56°
43°
13
55°
38°
14
51°
37°
15
47°
36°
16
44°
32°
17
44°
30°
18
43°
41°
19
50°
43°
20
54°
43°
21
55°
42°
22
53°
36°
23
52°
34°
24
45°
35°
25
46°
32°
26
42°
37°
27
48°
37°
28
48°
34°
29
47°
33°
30
42°
30°
1
40°
28°
2
37°
29°
3
38°
31°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Churchill
Churchill's September 2026 forecast shows daily high temperatures ranging from 37° to 62°, with overnight lows between 28° and 49°. The average high for September is 50° with an average low of 39°. 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 Churchill. See also: October | November | December.
