S
M
T
W
T
F
S
31
65°
56°
1
66°
58°
2
67°
58°
3
67°
57°
4
72°
58°
5
75°
53°
6
71°
55°
7
71°
60°
8
75°
61°
9
74°
55°
10
76°
59°
11
75°
56°
12
71°
60°
13
78°
62°
14
80°
57°
15
81°
62°
16
78°
63°
17
73°
62°
18
78°
61°
19
79°
60°
20
77°
59°
21
74°
58°
22
74°
62°
23
75°
59°
24
78°
60°
25
78°
59°
26
77°
64°
27
81°
59°
28
78°
61°
29
77°
60°
30
78°
61°
1
76°
62°
2
78°
64°
3
78°
68°
4
83°
68°
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 65° to 83°, with overnight lows between 53° and 68°. The average high for June is 75° 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.