S
M
T
W
T
F
S
31
72°
55°
1
68°
57°
2
71°
59°
3
75°
59°
4
68°
58°
5
74°
55°
6
68°
55°
7
69°
58°
8
71°
58°
9
74°
62°
10
77°
62°
11
78°
61°
12
79°
62°
13
78°
64°
14
80°
61°
15
80°
58°
16
78°
56°
17
75°
56°
18
76°
57°
19
77°
62°
20
75°
58°
21
75°
59°
22
79°
63°
23
79°
63°
24
77°
59°
25
80°
59°
26
77°
60°
27
79°
60°
28
77°
61°
29
77°
60°
30
78°
66°
1
81°
64°
2
82°
65°
3
78°
61°
4
77°
59°
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 68° to 82°, with overnight lows between 55° and 66°. The average high for June is 76° with an average low of 60°. 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.