S
M
T
W
T
F
S
27
60°
56°
28
58°
56°
29
66°
56°
30
66°
60°
1
79°
59°
2
87°
66°
3
67°
54°
4
63°
50°
5
71°
53°
6
63°
47°
7
66°
43°
8
73°
56°
9
69°
55°
10
63°
49°
11
59°
50°
12
67°
54°
13
64°
58°
14
71°
49°
15
60°
40°
16
55°
48°
17
53°
41°
18
51°
41°
19
56°
47°
20
61°
48°
21
61°
46°
22
57°
47°
23
59°
48°
24
60°
45°
25
54°
49°
26
60°
50°
27
61°
39°
28
52°
39°
29
51°
40°
30
52°
46°
31
57°
41°
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 51° to 71°, with overnight lows between 39° and 58°. The average high for October is 58° 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 Boston. See also: November | December | January.