S
M
T
W
T
F
S
31
74°
44°
1
75°
44°
2
78°
49°
3
81°
47°
4
83°
49°
5
82°
55°
6
80°
62°
7
77°
55°
8
83°
56°
9
82°
63°
10
83°
70°
11
82°
70°
12
77°
65°
13
81°
61°
14
72°
53°
15
70°
50°
16
72°
50°
17
71°
55°
18
71°
58°
19
73°
53°
20
71°
50°
21
74°
50°
22
73°
57°
23
73°
49°
24
74°
57°
25
70°
57°
26
73°
55°
27
76°
57°
28
81°
60°
29
83°
64°
30
86°
66°
1
87°
65°
2
83°
63°
3
80°
62°
4
80°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Dorchester
Dorchester's June 2026 forecast shows daily high temperatures ranging from 70° to 87°, with overnight lows between 49° and 66°. The average high for June is 79° 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 Dorchester. See also: July | August | September.