S
M
T
W
T
F
S
29
58°
24°
30
70°
45°
31
80°
62°
1
81°
48°
2
52°
44°
3
80°
60°
4
83°
63°
5
68°
41°
6
56°
40°
7
54°
32°
8
52°
35°
9
65°
46°
10
73°
46°
11
70°
44°
12
69°
46°
13
66°
47°
14
71°
40°
15
67°
46°
16
64°
37°
17
57°
36°
18
57°
37°
19
59°
39°
20
65°
47°
21
69°
48°
22
70°
47°
23
60°
47°
24
64°
49°
25
71°
49°
26
71°
48°
27
65°
44°
28
62°
41°
29
62°
45°
30
71°
49°
1
66°
46°
2
63°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Williamstown
Williamstown's April 2026 forecast shows daily high temperatures ranging from 52° to 83°, with overnight lows between 32° and 63°. The average high for April is 66° 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 Williamstown. See also: May | June | July.
