S
M
T
W
T
F
S
27
88°
63°
28
88°
63°
29
81°
60°
30
80°
57°
1
79°
57°
2
80°
58°
3
80°
61°
4
79°
55°
5
80°
56°
6
84°
60°
7
86°
60°
8
86°
59°
9
84°
60°
10
84°
54°
11
85°
50°
12
79°
49°
13
75°
51°
14
76°
58°
15
79°
59°
16
76°
58°
17
78°
58°
18
80°
57°
19
84°
49°
20
80°
50°
21
76°
48°
22
75°
54°
23
76°
56°
24
79°
54°
25
73°
48°
26
Hist. Avg.
77°
50°
27
Hist. Avg.
76°
50°
28
Hist. Avg.
76°
49°
29
Hist. Avg.
76°
49°
30
Hist. Avg.
75°
49°
31
Hist. Avg.
75°
49°
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 73° to 88°, with overnight lows between 48° and 63°. The average high for October is 80° with an average low of 56°. 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.