S
M
T
W
T
F
S
29
47°
20°
30
66°
35°
31
72°
42°
1
69°
40°
2
40°
32°
3
64°
34°
4
58°
34°
5
52°
34°
6
43°
31°
7
46°
28°
8
46°
23°
9
55°
28°
10
68°
34°
11
56°
39°
12
56°
34°
13
71°
40°
14
82°
58°
15
81°
55°
16
82°
54°
17
68°
50°
18
55°
44°
19
48°
33°
20
46°
31°
21
52°
37°
22
48°
38°
23
64°
39°
24
60°
38°
25
51°
36°
26
55°
37°
27
54°
40°
28
55°
42°
29
55°
40°
30
57°
43°
1
59°
44°
2
58°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Westborough
Westborough's April 2026 forecast shows daily high temperatures ranging from 48° to 64°, with overnight lows between 36° and 44°. 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 Westborough. See also: May | June | July.
