S
M
T
W
T
F
S
31
N/A
1
89°
72°
2
88°
65°
3
84°
61°
4
83°
65°
5
87°
66°
6
88°
66°
7
89°
67°
8
92°
71°
9
91°
71°
10
89°
72°
11
90°
70°
12
88°
72°
13
91°
70°
14
90°
69°
15
90°
71°
16
91°
71°
17
90°
70°
18
92°
71°
19
92°
71°
20
91°
70°
21
93°
72°
22
93°
72°
23
92°
71°
24
92°
72°
25
89°
72°
26
92°
71°
27
93°
71°
28
92°
72°
29
89°
72°
30
90°
71°
1
92°
72°
2
92°
72°
3
93°
71°
4
92°
72°
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 83° to 93°, with overnight lows between 61° and 72°. The average high for June is 90° with an average low of 70°. 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.
