S
M
T
W
T
F
S
29
49°
31°
30
65°
33°
31
66°
50°
1
54°
33°
2
58°
32°
3
73°
39°
4
66°
37°
5
52°
34°
6
42°
33°
7
36°
24°
8
55°
21°
9
67°
42°
10
47°
33°
11
51°
32°
12
63°
54°
13
64°
49°
14
66°
51°
15
64°
52°
16
62°
46°
17
66°
44°
18
60°
41°
19
62°
46°
20
63°
46°
21
62°
45°
22
63°
38°
23
52°
36°
24
52°
43°
25
53°
43°
26
56°
41°
27
52°
39°
28
55°
38°
29
56°
43°
30
62°
46°
1
61°
45°
2
61°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Niagara
Niagara's April 2026 forecast shows daily high temperatures ranging from 47° to 67°, with overnight lows between 32° and 54°. The average high for April is 59° with an average low of 43°. 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 Niagara. See also: May | June | July.