S
M
T
W
T
F
S
31
71°
54°
1
69°
53°
2
69°
52°
3
68°
51°
4
68°
49°
5
69°
56°
6
71°
56°
7
70°
58°
8
77°
59°
9
75°
58°
10
78°
52°
11
70°
51°
12
71°
52°
13
72°
57°
14
72°
51°
15
70°
51°
16
71°
52°
17
72°
53°
18
72°
57°
19
75°
60°
20
80°
60°
21
75°
58°
22
74°
55°
23
76°
62°
24
81°
61°
25
81°
62°
26
77°
56°
27
76°
56°
28
78°
61°
29
82°
55°
30
76°
56°
1
78°
60°
2
81°
63°
3
81°
63°
4
83°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Westborough
Westborough's June 2026 forecast shows daily high temperatures ranging from 68° to 83°, with overnight lows between 49° and 63°. The average high for June is 75° with an average low of 56°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Westborough. See also: July | August | September.