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
64°
27°
6
67°
33°
7
68°
50°
8
77°
50°
9
78°
56°
10
68°
55°
11
77°
63°
12
73°
60°
13
82°
60°
14
73°
42°
15
59°
41°
16
68°
46°
17
71°
53°
18
72°
53°
19
75°
56°
20
67°
43°
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 59° to 82°, with overnight lows between 41° and 63°. The average high for April is 71° with an average low of 51°. 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.
