S
M
T
W
T
F
S
29
66°
46°
30
86°
59°
31
81°
52°
1
50°
41°
2
75°
45°
3
73°
46°
4
63°
41°
5
57°
34°
6
55°
41°
7
49°
43°
8
74°
53°
9
69°
49°
10
62°
49°
11
70°
59°
12
79°
64°
13
86°
60°
14
78°
46°
15
64°
47°
16
65°
42°
17
68°
45°
18
70°
48°
19
66°
44°
20
71°
51°
21
70°
52°
22
72°
50°
23
63°
48°
24
72°
43°
25
64°
51°
26
68°
51°
27
70°
50°
28
73°
51°
29
68°
48°
30
64°
48°
1
68°
51°
2
69°
48°
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 49° to 86°, with overnight lows between 42° and 64°. The average high for April is 69° with an average low of 50°. 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.
