S
M
T
W
T
F
S
31
68°
44°
1
58°
49°
2
75°
49°
3
80°
60°
4
89°
59°
5
88°
65°
6
87°
62°
7
82°
59°
8
74°
56°
9
86°
59°
10
90°
62°
11
90°
68°
12
88°
69°
13
90°
73°
14
91°
69°
15
83°
67°
16
79°
60°
17
77°
60°
18
81°
63°
19
82°
66°
20
80°
65°
21
83°
65°
22
73°
60°
23
71°
62°
24
83°
64°
25
80°
66°
26
77°
65°
27
74°
62°
28
74°
61°
29
77°
61°
30
88°
70°
1
96°
74°
2
101°
77°
3
96°
72°
4
87°
69°
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 74° to 101°, with overnight lows between 61° and 77°. The average high for June is 87° with an average low of 68°. 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.
