S
M
T
W
T
F
S
27
68°
52°
28
66°
49°
29
65°
49°
30
65°
48°
1
68°
52°
2
68°
54°
3
69°
52°
4
70°
47°
5
64°
46°
6
63°
44°
7
62°
46°
8
61°
45°
9
62°
50°
10
63°
49°
11
62°
45°
12
61°
43°
13
60°
45°
14
60°
49°
15
Hist. Avg.
61°
46°
16
Hist. Avg.
61°
46°
17
Hist. Avg.
61°
45°
18
Hist. Avg.
60°
45°
19
Hist. Avg.
60°
45°
20
Hist. Avg.
60°
44°
21
Hist. Avg.
60°
44°
22
Hist. Avg.
59°
44°
23
Hist. Avg.
59°
44°
24
Hist. Avg.
59°
43°
25
Hist. Avg.
58°
43°
26
Hist. Avg.
58°
43°
27
Hist. Avg.
58°
42°
28
Hist. Avg.
58°
42°
29
Hist. Avg.
57°
42°
30
Hist. Avg.
57°
42°
31
Hist. Avg.
57°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in South Yarmouth
South Yarmouth's October 2026 forecast shows daily high temperatures ranging from 60° to 70°, with overnight lows between 43° and 54°. The average high for October is 64° with an average low of 48°. 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 South Yarmouth. See also: November | December | January.