S
M
T
W
T
F
S
28
79°
64°
29
77°
59°
30
75°
64°
1
79°
64°
2
77°
63°
3
81°
59°
4
N/A
5
82°
59°
6
87°
61°
7
86°
64°
8
88°
66°
9
87°
66°
10
89°
68°
11
89°
67°
12
87°
65°
13
85°
62°
14
83°
64°
15
85°
66°
16
84°
65°
17
75°
56°
18
76°
57°
19
75°
56°
20
72°
54°
21
74°
57°
22
74°
53°
23
73°
54°
24
75°
57°
25
75°
55°
26
74°
55°
27
74°
53°
28
75°
57°
29
74°
57°
30
72°
55°
31
73°
53°
1
72°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
July Weather in Thornton Heath
Thornton Heath's July 2026 forecast shows daily high temperatures ranging from 72° to 89°, with overnight lows between 52° and 68°. 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 Thornton Heath. See also: August | September | October.