S
M
T
W
T
F
S
29
49°
23°
30
61°
29°
31
41°
33°
1
38°
28°
2
42°
26°
3
69°
36°
4
39°
31°
5
50°
32°
6
40°
24°
7
32°
20°
8
43°
31°
9
55°
36°
10
44°
34°
11
50°
30°
12
54°
47°
13
60°
51°
14
52°
32°
15
42°
34°
16
47°
35°
17
51°
39°
18
52°
38°
19
54°
36°
20
53°
45°
21
59°
40°
22
51°
41°
23
59°
43°
24
61°
38°
25
53°
36°
26
51°
32°
27
52°
32°
28
56°
34°
29
52°
35°
30
52°
36°
1
53°
35°
2
54°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Ottawa
Ottawa's April 2026 forecast shows daily high temperatures ranging from 32° to 61°, with overnight lows between 20° and 51°. The average high for April is 52° with an average low of 36°. 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 Ottawa. See also: May | June | July.
