S
M
T
W
T
F
S
27
69°
53°
28
74°
52°
29
66°
61°
30
71°
59°
1
67°
46°
2
62°
39°
3
71°
54°
4
68°
45°
5
68°
38°
6
82°
55°
7
74°
49°
8
67°
42°
9
73°
57°
10
87°
63°
11
84°
59°
12
66°
48°
13
56°
48°
14
59°
54°
15
64°
41°
16
52°
39°
17
54°
42°
18
59°
43°
19
58°
41°
20
58°
44°
21
62°
42°
22
54°
36°
23
49°
34°
24
58°
43°
25
60°
38°
26
53°
39°
27
53°
29°
28
45°
31°
29
52°
37°
30
53°
33°
31
55°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Plymouth
Plymouth's October 2026 forecast shows daily high temperatures ranging from 45° to 87°, with overnight lows between 29° and 63°. The average high for October is 59° with an average low of 43°. 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 Plymouth. See also: November | December | January.