S
M
T
W
T
F
S
31
74°
44°
1
73°
45°
2
75°
47°
3
78°
51°
4
80°
61°
5
82°
63°
6
81°
61°
7
77°
61°
8
79°
59°
9
77°
58°
10
79°
61°
11
77°
56°
12
75°
57°
13
75°
59°
14
76°
64°
15
68°
48°
16
68°
49°
17
69°
49°
18
70°
52°
19
73°
57°
20
78°
58°
21
77°
59°
22
76°
59°
23
73°
58°
24
75°
52°
25
71°
51°
26
72°
59°
27
77°
58°
28
72°
56°
29
72°
54°
30
73°
54°
1
73°
57°
2
75°
60°
3
79°
60°
4
75°
53°
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 68° to 82°, with overnight lows between 47° and 64°. The average high for June is 75° with an average low of 56°. 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.