S
M
T
W
T
F
S
28
83°
58°
29
86°
60°
30
83°
59°
1
87°
62°
2
87°
63°
3
83°
64°
4
85°
63°
5
84°
69°
6
79°
57°
7
80°
57°
8
85°
60°
9
86°
63°
10
80°
63°
11
81°
61°
12
84°
64°
13
86°
64°
14
86°
63°
15
85°
64°
16
80°
64°
17
82°
63°
18
82°
63°
19
81°
62°
20
84°
62°
21
86°
65°
22
86°
65°
23
82°
64°
24
83°
64°
25
84°
63°
26
87°
65°
27
87°
65°
28
86°
66°
29
82°
65°
30
81°
65°
31
86°
64°
1
85°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Southampton
Southampton's July 2026 forecast shows daily high temperatures ranging from 79° to 87°, with overnight lows between 57° and 69°. The average high for July is 84° with an average low of 63°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Southampton. See also: August | September | October.
