S
M
T
W
T
F
S
27
73°
59°
28
71°
58°
29
72°
58°
30
73°
57°
1
73°
59°
2
72°
52°
3
72°
49°
4
68°
49°
5
61°
52°
6
62°
44°
7
67°
44°
8
58°
52°
9
61°
54°
10
67°
54°
11
68°
56°
12
69°
52°
13
68°
50°
14
66°
46°
15
59°
47°
16
58°
49°
17
60°
45°
18
65°
42°
19
57°
50°
20
60°
49°
21
64°
49°
22
62°
51°
23
64°
51°
24
65°
50°
25
65°
50°
26
63°
47°
27
65°
44°
28
63°
39°
29
54°
41°
30
53°
47°
31
55°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Boston
Boston's October 2026 forecast shows daily high temperatures ranging from 53° to 73°, with overnight lows between 39° and 59°. The average high for October is 64° with an average low of 50°. 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 Boston. See also: November | December | January.