S
M
T
W
T
F
S
31
67°
51°
1
58°
44°
2
68°
51°
3
70°
53°
4
74°
61°
5
82°
66°
6
80°
63°
7
73°
60°
8
72°
58°
9
79°
62°
10
76°
60°
11
77°
61°
12
76°
59°
13
70°
59°
14
71°
58°
15
72°
56°
16
71°
56°
17
71°
57°
18
73°
59°
19
73°
60°
20
74°
59°
21
73°
58°
22
73°
58°
23
74°
59°
24
74°
65°
25
75°
62°
26
76°
61°
27
75°
65°
28
79°
66°
29
76°
62°
30
75°
61°
1
74°
61°
2
76°
64°
3
77°
68°
4
78°
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 58° to 82°, with overnight lows between 44° and 68°. The average high for June is 74° 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.