S
M
T
W
T
F
S
31
67°
58°
1
70°
57°
2
69°
54°
3
68°
58°
4
71°
59°
5
68°
58°
6
69°
59°
7
74°
60°
8
70°
61°
9
76°
62°
10
72°
62°
11
77°
61°
12
73°
62°
13
78°
58°
14
70°
58°
15
80°
64°
16
81°
64°
17
80°
63°
18
81°
65°
19
82°
61°
20
83°
58°
21
79°
57°
22
77°
59°
23
74°
59°
24
76°
60°
25
77°
60°
26
77°
59°
27
83°
60°
28
77°
61°
29
78°
63°
30
76°
62°
1
83°
62°
2
83°
68°
3
84°
65°
4
80°
62°
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 67° to 84°, with overnight lows between 54° and 68°. The average high for June is 76° with an average low of 61°. 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.