S
M
T
W
T
F
S
27
67°
51°
28
68°
52°
29
68°
52°
30
67°
51°
1
68°
52°
2
68°
52°
3
66°
51°
4
65°
52°
5
67°
51°
6
66°
51°
7
67°
50°
8
66°
50°
9
64°
46°
10
62°
48°
11
62°
47°
12
64°
45°
13
63°
46°
14
58°
45°
15
60°
46°
16
58°
44°
17
57°
43°
18
60°
46°
19
61°
47°
20
62°
43°
21
61°
44°
22
59°
42°
23
60°
35°
24
58°
41°
25
48°
43°
26
59°
42°
27
57°
38°
28
55°
36°
29
45°
34°
30
44°
31°
31
44°
34°
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 44° to 68°, with overnight lows between 31° and 52°. The average high for October is 61° with an average low of 45°. 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.