S
M
T
W
T
F
S
27
81°
62°
28
80°
63°
29
81°
61°
30
79°
56°
1
75°
62°
2
79°
62°
3
79°
60°
4
80°
53°
5
72°
52°
6
71°
53°
7
71°
53°
8
75°
58°
9
76°
58°
10
75°
56°
11
69°
52°
12
69°
52°
13
69°
55°
14
Hist. Avg.
73°
52°
15
Hist. Avg.
73°
52°
16
Hist. Avg.
72°
51°
17
Hist. Avg.
72°
51°
18
Hist. Avg.
72°
51°
19
Hist. Avg.
72°
50°
20
Hist. Avg.
71°
50°
21
Hist. Avg.
71°
50°
22
Hist. Avg.
71°
50°
23
Hist. Avg.
70°
49°
24
Hist. Avg.
70°
49°
25
Hist. Avg.
70°
49°
26
Hist. Avg.
70°
48°
27
Hist. Avg.
69°
48°
28
Hist. Avg.
69°
48°
29
Hist. Avg.
69°
48°
30
Hist. Avg.
68°
47°
31
Hist. Avg.
68°
47°
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 69° to 81°, with overnight lows between 52° and 63°. The average high for October is 75° with an average low of 57°. 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.