S
M
T
W
T
F
S
27
58°
28°
28
67°
32°
29
66°
46°
30
58°
39°
1
57°
30°
2
66°
41°
3
64°
34°
4
68°
32°
5
75°
49°
6
72°
42°
7
61°
34°
8
61°
38°
9
69°
39°
10
43°
31°
11
33°
30°
12
45°
27°
13
52°
30°
14
66°
29°
15
52°
33°
16
71°
43°
17
67°
35°
18
55°
32°
19
50°
32°
20
49°
32°
21
54°
34°
22
58°
31°
23
52°
36°
24
46°
30°
25
48°
33°
26
49°
32°
27
58°
27°
28
54°
31°
29
44°
30°
30
53°
32°
31
51°
30°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Calgary
Calgary's October 2026 forecast shows daily high temperatures ranging from 44° to 71°, with overnight lows between 27° and 43°. The average high for October is 54° with an average low of 32°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Calgary. See also: November | December | January.