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
64°
38°
10
43°
34°
11
50°
30°
12
46°
41°
13
65°
42°
14
58°
43°
15
64°
52°
16
65°
50°
17
70°
36°
18
56°
33°
19
58°
41°
20
61°
45°
21
62°
46°
22
56°
39°
23
50°
36°
24
55°
39°
25
58°
42°
26
55°
41°
27
52°
37°
28
59°
38°
29
56°
37°
30
60°
44°
1
59°
42°
2
62°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Old Ottawa
Old Ottawa's April 2026 forecast shows daily high temperatures ranging from 43° to 70°, with overnight lows between 30° and 52°. The average high for April is 58° with an average low of 40°. 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 Old Ottawa. See also: May | June | July.
