S
M
T
W
T
F
S
29
77°
42°
30
89°
61°
31
82°
58°
1
61°
49°
2
75°
47°
3
77°
43°
4
56°
33°
5
67°
38°
6
70°
36°
7
64°
50°
8
73°
51°
9
74°
55°
10
69°
52°
11
70°
57°
12
69°
56°
13
73°
54°
14
71°
50°
15
68°
46°
16
63°
43°
17
66°
48°
18
67°
42°
19
71°
48°
20
72°
51°
21
71°
51°
22
72°
46°
23
61°
49°
24
72°
42°
25
65°
52°
26
74°
51°
27
73°
50°
28
73°
51°
29
70°
51°
30
65°
50°
1
64°
52°
2
69°
50°
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 61° to 74°, with overnight lows between 36° and 57°. The average high for April is 69° with an average low of 49°. 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.
