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
31°
18°
8
44°
15°
9
65°
28°
10
47°
35°
11
47°
30°
12
47°
24°
13
64°
41°
14
48°
39°
15
50°
39°
16
58°
47°
17
67°
44°
18
71°
38°
19
44°
26°
20
40°
28°
21
47°
35°
22
49°
33°
23
50°
34°
24
51°
35°
25
53°
39°
26
53°
40°
27
54°
41°
28
54°
39°
29
56°
43°
30
56°
42°
1
53°
41°
2
54°
38°
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 40° to 71°, with overnight lows between 26° and 47°. The average high for April is 54° with an average low of 38°. 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.
