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
60°
48°
12
71°
50°
13
62°
53°
14
77°
59°
15
62°
47°
16
69°
46°
17
50°
34°
18
54°
40°
19
60°
45°
20
60°
48°
21
57°
46°
22
56°
47°
23
58°
46°
24
59°
45°
25
57°
46°
26
57°
44°
27
56°
46°
28
59°
43°
29
51°
40°
30
58°
46°
31
54°
49°
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 50° to 69°, with overnight lows between 34° and 49°. The average high for October is 57° with an average low of 45°. 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.