S
M
T
W
T
F
S
29
68°
57°
30
78°
52°
31
82°
57°
1
75°
61°
2
74°
56°
3
62°
54°
4
65°
51°
5
76°
48°
6
71°
61°
7
67°
58°
8
68°
52°
9
69°
64°
10
67°
54°
11
57°
47°
12
59°
51°
13
66°
52°
14
66°
55°
15
69°
55°
16
N/A
17
62°
53°
18
61°
42°
19
66°
49°
20
70°
49°
21
74°
50°
22
75°
55°
23
76°
53°
24
77°
58°
25
76°
55°
26
65°
51°
27
64°
51°
28
63°
50°
29
63°
52°
30
70°
55°
1
65°
55°
2
64°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
April Weather in Williamstown
Williamstown's April 2026 forecast shows daily high temperatures ranging from 61° to 77°, with overnight lows between 42° and 58°. The average high for April is 68° with an average low of 52°. 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.
