S
M
T
W
T
F
S
26
79°
66°
27
81°
63°
28
84°
66°
29
93°
68°
30
82°
68°
31
77°
63°
1
79°
61°
2
81°
61°
3
84°
64°
4
86°
66°
5
79°
63°
6
72°
59°
7
79°
57°
8
82°
59°
9
86°
64°
10
79°
63°
11
75°
61°
12
86°
64°
13
93°
64°
14
93°
72°
15
79°
66°
16
79°
64°
17
81°
66°
18
79°
66°
19
77°
63°
20
75°
61°
21
70°
57°
22
70°
55°
23
75°
55°
24
70°
59°
25
73°
62°
26
77°
64°
27
74°
59°
28
69°
59°
29
71°
59°
30
72°
58°
31
72°
57°
1
71°
56°
2
71°
57°
3
72°
59°
4
71°
58°
5
72°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in London
London's August 2026 forecast shows daily high temperatures ranging from 69° to 77°, with overnight lows between 52° and 64°. The average high for August is 72° with an average low of 58°. 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 London. See also: September | October | November.