S
M
T
W
T
F
S
27
71°
58°
28
72°
58°
29
72°
52°
30
71°
52°
1
65°
51°
2
65°
51°
3
69°
55°
4
70°
56°
5
63°
55°
6
66°
56°
7
69°
57°
8
70°
54°
9
71°
53°
10
69°
51°
11
66°
52°
12
63°
53°
13
61°
52°
14
59°
50°
15
62°
52°
16
65°
53°
17
67°
50°
18
67°
45°
19
64°
48°
20
58°
42°
21
61°
42°
22
55°
50°
23
60°
49°
24
64°
45°
25
59°
42°
26
56°
41°
27
55°
47°
28
55°
45°
29
61°
39°
30
61°
39°
31
62°
47°
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 55° to 72°, with overnight lows between 39° and 58°. 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.