S
M
T
W
T
F
S
27
58°
38°
28
63°
35°
29
58°
40°
30
61°
38°
1
62°
39°
2
61°
41°
3
66°
36°
4
58°
33°
5
53°
33°
6
52°
30°
7
52°
29°
8
51°
26°
9
50°
24°
10
48°
25°
11
49°
28°
12
51°
28°
13
51°
32°
14
50°
25°
15
50°
26°
16
49°
31°
17
52°
32°
18
50°
34°
19
54°
27°
20
53°
30°
21
55°
24°
22
52°
21°
23
45°
20°
24
45°
21°
25
43°
18°
26
45°
32°
27
50°
23°
28
Hist. Avg.
47°
24°
29
Hist. Avg.
47°
24°
30
Hist. Avg.
46°
23°
31
Hist. Avg.
45°
23°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Calgary
Calgary's October 2026 forecast shows daily high temperatures ranging from 43° to 66°, with overnight lows between 18° and 41°. The average high for October is 53° with an average low of 30°. 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.