S
M
T
W
T
F
S
28
69°
64°
29
71°
66°
30
93°
75°
1
98°
74°
2
97°
72°
3
91°
70°
4
82°
64°
5
83°
62°
6
82°
62°
7
81°
63°
8
83°
64°
9
79°
63°
10
79°
64°
11
82°
63°
12
81°
62°
13
82°
61°
14
74°
57°
15
75°
61°
16
76°
64°
17
77°
64°
18
79°
65°
19
76°
64°
20
79°
65°
21
81°
66°
22
80°
66°
23
83°
65°
24
82°
66°
25
83°
66°
26
84°
67°
27
83°
67°
28
82°
66°
29
83°
64°
30
78°
60°
31
75°
58°
1
75°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Southwest Middlesex
Southwest Middlesex's July 2026 forecast shows daily high temperatures ranging from 74° to 98°, with overnight lows between 57° and 75°. The average high for July is 82° with an average low of 65°. 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 Southwest Middlesex. See also: August | September | October.