S
M
T
W
T
F
S
27
68°
51°
28
69°
54°
29
65°
50°
30
67°
51°
1
68°
50°
2
66°
49°
3
65°
44°
4
59°
44°
5
63°
49°
6
63°
50°
7
64°
49°
8
64°
49°
9
63°
50°
10
64°
50°
11
64°
49°
12
62°
46°
13
63°
49°
14
62°
48°
15
63°
49°
16
61°
48°
17
60°
47°
18
60°
48°
19
61°
49°
20
60°
48°
21
61°
48°
22
62°
47°
23
61°
48°
24
61°
48°
25
59°
47°
26
58°
46°
27
56°
44°
28
55°
42°
29
53°
42°
30
54°
39°
31
53°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Southampton
Southampton's October 2026 forecast shows daily high temperatures ranging from 53° to 69°, with overnight lows between 39° and 54°. The average high for October is 62° with an average low of 47°. 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 Southampton. See also: November | December | January.