S
M
T
W
T
F
S
28
66°
59°
29
66°
57°
30
68°
57°
1
68°
57°
2
72°
54°
3
72°
52°
4
68°
59°
5
68°
59°
6
75°
59°
7
70°
59°
8
88°
58°
9
85°
63°
10
93°
67°
11
91°
62°
12
90°
61°
13
87°
62°
14
84°
64°
15
85°
64°
16
84°
63°
17
81°
60°
18
78°
60°
19
74°
59°
20
75°
58°
21
72°
57°
22
70°
57°
23
71°
56°
24
71°
57°
25
73°
57°
26
74°
56°
27
74°
57°
28
72°
56°
29
73°
54°
30
74°
57°
31
74°
58°
1
73°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in St Mellons
St Mellons's July 2026 forecast shows daily high temperatures ranging from 70° to 93°, with overnight lows between 54° and 67°. The average high for July is 79° with an average low of 59°. 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 St Mellons. See also: August | September | October.
