S
M
T
W
T
F
S
27
65°
41°
28
67°
42°
29
68°
38°
30
63°
29°
1
53°
36°
2
57°
36°
3
55°
31°
4
51°
27°
5
50°
32°
6
54°
36°
7
60°
38°
8
63°
36°
9
63°
37°
10
62°
37°
11
61°
36°
12
61°
33°
13
50°
36°
14
57°
35°
15
56°
31°
16
53°
34°
17
50°
33°
18
56°
34°
19
54°
33°
20
55°
29°
21
47°
31°
22
46°
23°
23
Hist. Avg.
50°
26°
24
Hist. Avg.
49°
26°
25
Hist. Avg.
49°
25°
26
Hist. Avg.
48°
25°
27
Hist. Avg.
48°
25°
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 46° to 68°, with overnight lows between 23° and 42°. The average high for October is 57° with an average low of 34°. 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.