S
M
T
W
T
F
S
29
66°
37°
30
72°
50°
31
79°
61°
1
75°
61°
2
84°
63°
3
79°
66°
4
81°
63°
5
63°
43°
6
63°
36°
7
54°
39°
8
66°
36°
9
79°
50°
10
83°
57°
11
74°
51°
12
85°
63°
13
76°
61°
14
84°
64°
15
88°
66°
16
80°
55°
17
82°
54°
18
75°
56°
19
75°
55°
20
76°
55°
21
73°
54°
22
74°
45°
23
68°
50°
24
77°
53°
25
73°
51°
26
73°
48°
27
68°
43°
28
67°
46°
29
74°
51°
30
77°
53°
1
75°
54°
2
73°
54°
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 67° to 88°, with overnight lows between 43° and 66°. The average high for April is 76° with an average low of 54°. 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.
