S
M
T
W
T
F
S
29
59°
26°
30
74°
41°
31
80°
53°
1
69°
42°
2
52°
43°
3
61°
42°
4
76°
52°
5
59°
38°
6
51°
34°
7
42°
22°
8
53°
34°
9
61°
41°
10
67°
46°
11
69°
47°
12
68°
49°
13
66°
52°
14
71°
48°
15
68°
43°
16
66°
44°
17
67°
39°
18
57°
44°
19
56°
45°
20
67°
47°
21
68°
47°
22
69°
48°
23
70°
47°
24
70°
45°
25
66°
39°
26
59°
42°
27
58°
37°
28
60°
41°
29
60°
37°
30
59°
37°
1
60°
39°
2
62°
39°
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 42° to 76°, with overnight lows between 22° and 52°. The average high for April is 63° with an average low of 42°. 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.
