S
M
T
W
T
F
S
27
72°
62°
28
76°
59°
29
69°
54°
30
70°
61°
1
71°
59°
2
67°
55°
3
70°
61°
4
74°
61°
5
75°
60°
6
73°
61°
7
72°
60°
8
68°
59°
9
69°
60°
10
72°
59°
11
72°
58°
12
71°
51°
13
60°
48°
14
59°
47°
15
58°
46°
16
58°
45°
17
59°
53°
18
64°
47°
19
58°
46°
20
57°
45°
21
57°
46°
22
56°
45°
23
63°
57°
24
68°
53°
25
69°
47°
26
63°
43°
27
55°
42°
28
54°
40°
29
51°
41°
30
53°
47°
31
54°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Chelsea
Chelsea's October 2026 forecast shows daily high temperatures ranging from 51° to 76°, with overnight lows between 40° and 62°. The average high for October is 64° with an average low of 52°. 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 Chelsea. See also: November | December | January.