S
M
T
W
T
F
S
30
73°
41°
31
63°
43°
1
66°
43°
2
64°
44°
3
62°
38°
4
63°
40°
5
65°
45°
6
72°
36°
7
72°
35°
8
61°
36°
9
58°
36°
10
59°
35°
11
59°
35°
12
61°
36°
13
63°
41°
14
62°
45°
15
63°
43°
16
68°
42°
17
59°
40°
18
58°
42°
19
60°
40°
20
63°
37°
21
62°
34°
22
57°
32°
23
56°
34°
24
59°
38°
25
63°
41°
26
66°
41°
27
Hist. Avg.
60°
35°
28
Hist. Avg.
60°
35°
29
Hist. Avg.
59°
35°
30
Hist. Avg.
59°
34°
1
Hist. Avg.
59°
34°
2
Hist. Avg.
58°
34°
3
Hist. Avg.
58°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in South Calgary
South Calgary's September 2026 forecast shows daily high temperatures ranging from 56° to 73°, with overnight lows between 32° and 45°. The average high for September is 63° 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 South Calgary. See also: October | November | December.
