S
M
T
W
T
F
S
27
78°
54°
28
78°
51°
29
70°
56°
30
71°
57°
1
70°
58°
2
74°
55°
3
75°
49°
4
69°
52°
5
67°
53°
6
68°
53°
7
69°
50°
8
67°
49°
9
71°
51°
10
Hist. Avg.
63°
47°
11
Hist. Avg.
63°
47°
12
Hist. Avg.
63°
46°
13
Hist. Avg.
62°
46°
14
Hist. Avg.
62°
46°
15
Hist. Avg.
61°
45°
16
Hist. Avg.
61°
45°
17
Hist. Avg.
61°
45°
18
Hist. Avg.
60°
45°
19
Hist. Avg.
60°
44°
20
Hist. Avg.
60°
44°
21
Hist. Avg.
59°
44°
22
Hist. Avg.
59°
44°
23
Hist. Avg.
59°
43°
24
Hist. Avg.
58°
43°
25
Hist. Avg.
58°
43°
26
Hist. Avg.
58°
43°
27
Hist. Avg.
58°
42°
28
Hist. Avg.
57°
42°
29
Hist. Avg.
57°
42°
30
Hist. Avg.
57°
42°
31
Hist. Avg.
57°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Chelsea
Chelsea's October 2026 forecast shows daily high temperatures ranging from 67° to 78°, with overnight lows between 49° and 58°. The average high for October is 71° with an average low of 53°. 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.