S
M
T
W
T
F
S
27
69°
59°
28
74°
58°
29
75°
56°
30
73°
56°
1
71°
58°
2
72°
56°
3
73°
54°
4
70°
55°
5
70°
56°
6
67°
55°
7
67°
54°
8
64°
52°
9
61°
54°
10
68°
55°
11
69°
52°
12
68°
46°
13
60°
46°
14
59°
49°
15
62°
51°
16
63°
52°
17
67°
53°
18
65°
53°
19
67°
51°
20
67°
49°
21
62°
49°
22
61°
46°
23
58°
45°
24
57°
48°
25
58°
45°
26
56°
46°
27
54°
47°
28
57°
47°
29
59°
39°
30
61°
38°
31
52°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Downtown Boston
Downtown Boston's October 2026 forecast shows daily high temperatures ranging from 52° to 75°, with overnight lows between 37° 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 Downtown Boston. See also: November | December | January.
