S
M
T
W
T
F
S
26
69°
57°
27
70°
56°
28
69°
56°
29
70°
55°
30
69°
56°
31
66°
55°
1
67°
54°
2
64°
56°
3
66°
55°
4
67°
57°
5
68°
56°
6
66°
55°
7
65°
53°
8
65°
51°
9
64°
53°
10
64°
54°
11
66°
52°
12
64°
51°
13
64°
52°
14
65°
54°
15
64°
51°
16
64°
51°
17
65°
50°
18
64°
52°
19
63°
50°
20
64°
49°
21
63°
54°
22
64°
52°
23
63°
50°
24
63°
49°
25
62°
49°
26
63°
50°
27
64°
51°
28
65°
52°
29
65°
54°
30
64°
54°
31
64°
53°
1
65°
54°
2
65°
52°
3
63°
51°
4
64°
50°
5
64°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Clapham
Clapham's August 2026 forecast shows daily high temperatures ranging from 62° to 70°, with overnight lows between 49° and 57°. The average high for August is 65° 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 August weather will actually feel in Clapham. See also: September | October | November.
