S
M
T
W
T
F
S
31
74°
57°
1
69°
55°
2
67°
52°
3
65°
51°
4
65°
50°
5
66°
49°
6
65°
50°
7
64°
52°
8
66°
51°
9
67°
51°
10
67°
52°
11
69°
52°
12
63°
51°
13
63°
52°
14
64°
53°
15
66°
54°
16
69°
54°
17
69°
53°
18
65°
53°
19
65°
51°
20
68°
53°
21
70°
54°
22
70°
54°
23
69°
52°
24
71°
55°
25
72°
56°
26
73°
56°
27
73°
55°
28
74°
57°
29
74°
56°
30
73°
56°
1
75°
57°
2
75°
56°
3
69°
54°
4
69°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Southampton
Southampton's June 2026 forecast shows daily high temperatures ranging from 63° to 75°, with overnight lows between 49° and 57°. The average high for June is 69° with an average low of 53°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Southampton. See also: July | August | September.