S
M
T
W
T
F
S
26
69°
50°
27
65°
49°
28
68°
48°
29
67°
42°
30
68°
50°
1
68°
51°
2
69°
47°
3
67°
51°
4
67°
48°
5
68°
46°
6
70°
54°
7
73°
56°
8
70°
56°
9
70°
55°
10
77°
51°
11
70°
49°
12
70°
47°
13
68°
48°
14
67°
51°
15
70°
53°
16
71°
50°
17
73°
59°
18
76°
52°
19
71°
50°
20
72°
54°
21
73°
60°
22
74°
61°
23
80°
61°
24
80°
60°
25
78°
62°
26
82°
62°
27
82°
61°
28
81°
58°
29
85°
61°
30
85°
60°
31
83°
56°
1
82°
58°
2
81°
57°
3
77°
61°
4
80°
62°
5
77°
63°
6
77°
63°
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 65° to 85°, with overnight lows between 42° and 63°. The average high for May is 74° with an average low of 55°. 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.
