S
M
T
W
T
F
S
31
76°
38°
1
70°
41°
2
78°
55°
3
79°
56°
4
74°
60°
5
71°
50°
6
65°
46°
7
72°
50°
8
78°
56°
9
79°
60°
10
75°
56°
11
77°
56°
12
71°
54°
13
68°
52°
14
69°
55°
15
71°
54°
16
64°
47°
17
65°
51°
18
70°
54°
19
74°
54°
20
71°
55°
21
73°
55°
22
72°
56°
23
68°
52°
24
66°
50°
25
66°
52°
26
67°
54°
27
68°
54°
28
67°
53°
29
67°
53°
30
68°
54°
1
71°
58°
2
76°
58°
3
73°
55°
4
68°
54°
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 64° to 79°, with overnight lows between 46° and 60°. The average high for June is 71° with an average low of 54°. 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.