S
M
T
W
T
F
S
27
81°
63°
28
77°
63°
29
77°
65°
30
73°
66°
1
69°
50°
2
70°
45°
3
78°
46°
4
76°
48°
5
78°
45°
6
81°
55°
7
82°
48°
8
72°
54°
9
79°
60°
10
83°
58°
11
79°
55°
12
69°
52°
13
69°
49°
14
66°
48°
15
68°
45°
16
61°
39°
17
59°
41°
18
63°
41°
19
65°
40°
20
57°
46°
21
57°
44°
22
68°
46°
23
68°
39°
24
55°
34°
25
59°
44°
26
64°
43°
27
67°
45°
28
66°
46°
29
66°
45°
30
65°
42°
31
58°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Dorchester
Dorchester's October 2026 forecast shows daily high temperatures ranging from 55° to 83°, with overnight lows between 34° and 60°. The average high for October is 67° with an average low of 46°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Dorchester. See also: November | December | January.
