S
M
T
W
T
F
S
29
50°
31°
30
60°
37°
31
68°
44°
1
52°
34°
2
62°
33°
3
71°
41°
4
74°
38°
5
52°
35°
6
43°
33°
7
36°
25°
8
58°
22°
9
71°
45°
10
57°
40°
11
49°
36°
12
66°
59°
13
63°
54°
14
69°
58°
15
69°
58°
16
65°
50°
17
62°
49°
18
71°
51°
19
56°
37°
20
49°
40°
21
57°
46°
22
62°
51°
23
61°
48°
24
58°
45°
25
59°
35°
26
53°
38°
27
52°
37°
28
54°
38°
29
54°
38°
30
55°
37°
1
55°
37°
2
54°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Williamsville
Williamsville's April 2026 forecast shows daily high temperatures ranging from 49° to 71°, with overnight lows between 35° and 59°. The average high for April is 59° with an average low of 45°. 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 Williamsville. See also: May | June | July.
