S
M
T
W
T
F
S
29
25°
18°
30
27°
16°
31
32°
6°
1
40°
14°
2
35°
28°
3
43°
28°
4
46°
32°
5
36°
28°
6
44°
26°
7
38°
29°
8
40°
26°
9
46°
24°
10
58°
27°
11
58°
30°
12
41°
30°
13
61°
33°
14
58°
36°
15
42°
19°
16
25°
15°
17
40°
11°
18
47°
24°
19
66°
40°
20
67°
44°
21
65°
41°
22
48°
29°
23
44°
27°
24
38°
25°
25
38°
25°
26
47°
31°
27
52°
33°
28
54°
34°
29
55°
35°
30
56°
37°
1
59°
36°
2
63°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Calgary
Calgary's April 2026 forecast shows daily high temperatures ranging from 38° to 67°, with overnight lows between 25° and 44°. The average high for April is 54° 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 April weather will actually feel in Calgary. See also: May | June | July.