S
M
T
W
T
F
S
29
68°
42°
30
87°
49°
31
73°
46°
1
49°
41°
2
59°
40°
3
54°
37°
4
45°
36°
5
60°
32°
6
49°
38°
7
44°
34°
8
74°
42°
9
59°
42°
10
63°
44°
11
64°
60°
12
71°
62°
13
83°
56°
14
68°
39°
15
56°
39°
16
63°
45°
17
67°
47°
18
68°
48°
19
71°
50°
20
72°
50°
21
64°
40°
22
58°
44°
23
59°
47°
24
66°
46°
25
63°
44°
26
61°
43°
27
59°
47°
28
66°
50°
29
70°
50°
30
71°
48°
1
65°
43°
2
61°
45°
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 56° to 83°, with overnight lows between 39° and 62°. The average high for April is 66° with an average low of 47°. 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.
