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
69°
44°
10
53°
38°
11
49°
32°
12
68°
31°
13
72°
51°
14
74°
51°
15
76°
52°
16
74°
55°
17
65°
50°
18
74°
40°
19
47°
30°
20
41°
29°
21
55°
42°
22
56°
37°
23
58°
46°
24
64°
47°
25
58°
43°
26
58°
43°
27
55°
42°
28
53°
43°
29
54°
42°
30
53°
44°
1
55°
42°
2
54°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Niagara Falls
Niagara Falls's April 2026 forecast shows daily high temperatures ranging from 41° to 74°, with overnight lows between 29° and 47°. The average high for April is 56° 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 Niagara Falls. See also: May | June | July.