S
M
T
W
T
F
S
1
38°
25°
2
28°
10°
3
37°
8°
4
45°
27°
5
39°
27°
6
39°
35°
7
45°
34°
8
55°
35°
9
66°
28°
10
59°
37°
11
62°
37°
12
56°
32°
13
42°
24°
14
51°
27°
15
42°
22°
16
54°
42°
17
53°
31°
18
34°
16°
19
41°
15°
20
48°
31°
21
54°
35°
22
49°
41°
23
48°
34°
24
46°
31°
25
47°
28°
26
54°
44°
27
55°
24°
28
41°
18°
29
47°
13°
30
55°
42°
31
60°
47°
1
63°
47°
2
47°
39°
3
56°
39°
4
68°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
March Weather in Southampton
Southampton's March 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for March is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how March weather will actually feel in Southampton. See also: April | May | June.
