S
M
T
W
T
F
S
26
86°
71°
27
85°
73°
28
86°
73°
29
76°
64°
30
64°
59°
1
59°
54°
2
75°
48°
3
80°
47°
4
80°
50°
5
86°
67°
6
76°
55°
7
69°
52°
8
80°
56°
9
86°
68°
10
86°
66°
11
77°
61°
12
85°
54°
13
89°
54°
14
90°
62°
15
89°
67°
16
89°
71°
17
88°
74°
18
88°
76°
19
86°
64°
20
81°
63°
21
80°
64°
22
87°
68°
23
83°
65°
24
88°
64°
25
88°
67°
26
85°
66°
27
81°
70°
28
84°
68°
29
90°
72°
30
93°
73°
31
96°
72°
1
93°
72°
2
94°
68°
3
89°
68°
4
88°
68°
5
89°
69°
6
91°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in London
London's May 2026 forecast shows daily high temperatures ranging from 84° to 96°, with overnight lows between 68° and 73°. The average high for May is 91° with an average low of 70°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in London. See also: June | July | August.
