S
M
T
W
T
F
S
31
73°
55°
1
72°
52°
2
68°
54°
3
66°
52°
4
66°
55°
5
64°
50°
6
66°
50°
7
70°
54°
8
64°
48°
9
63°
45°
10
61°
46°
11
61°
43°
12
72°
57°
13
64°
52°
14
66°
50°
15
66°
48°
16
73°
54°
17
73°
61°
18
77°
57°
19
84°
59°
20
75°
63°
21
73°
59°
22
77°
57°
23
90°
59°
24
82°
64°
25
79°
63°
26
97°
63°
27
88°
66°
28
77°
61°
29
72°
56°
30
71°
51°
1
70°
54°
2
72°
49°
3
71°
54°
4
72°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Boston
Boston's June 2026 forecast shows daily high temperatures ranging from 70° to 72°, with overnight lows between 49° and 56°. The average high for June is 71° with an average low of 53°. 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 Boston. See also: July | August | September.