S
M
T
W
T
F
S
26
71°
54°
27
72°
52°
28
73°
53°
29
74°
54°
30
74°
56°
31
75°
55°
1
73°
57°
2
76°
56°
3
76°
56°
4
75°
54°
5
75°
55°
6
76°
56°
7
76°
56°
8
75°
55°
9
72°
54°
10
71°
50°
11
72°
51°
12
74°
54°
13
73°
55°
14
70°
52°
15
71°
54°
16
75°
56°
17
74°
56°
18
74°
55°
19
73°
54°
20
71°
55°
21
71°
55°
22
74°
53°
23
70°
53°
24
71°
54°
25
70°
54°
26
71°
53°
27
70°
50°
28
70°
53°
29
71°
54°
30
69°
54°
31
72°
55°
1
72°
54°
2
73°
54°
3
73°
53°
4
72°
52°
5
72°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Thornton Heath
Thornton Heath's August 2026 forecast shows daily high temperatures ranging from 69° to 76°, with overnight lows between 50° and 57°. The average high for August is 73° with an average low of 54°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Thornton Heath. See also: September | October | November.
