S
M
T
W
T
F
S
28
64°
52°
29
64°
52°
30
66°
57°
1
63°
55°
2
63°
55°
3
61°
54°
4
61°
57°
5
61°
57°
6
61°
57°
7
64°
57°
8
77°
57°
9
72°
55°
10
79°
54°
11
66°
61°
12
72°
54°
13
72°
54°
14
70°
46°
15
N/A
16
81°
54°
17
76°
50°
18
74°
49°
19
72°
51°
20
71°
53°
21
73°
54°
22
68°
55°
23
68°
54°
24
67°
52°
25
68°
54°
26
66°
55°
27
64°
54°
28
62°
51°
29
64°
54°
30
65°
53°
31
64°
54°
1
65°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
July Weather in Newton Mearns
Newton Mearns's July 2026 forecast shows daily high temperatures ranging from 62° to 81°, with overnight lows between 49° and 55°. The average high for July 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 July weather will actually feel in Newton Mearns. See also: August | September | October.
