S
M
T
W
T
F
S
26
58°
41°
27
67°
50°
28
64°
44°
29
60°
41°
30
56°
40°
1
50°
39°
2
48°
37°
3
51°
37°
4
56°
41°
5
58°
43°
6
57°
51°
7
56°
38°
8
55°
36°
9
55°
38°
10
56°
38°
11
56°
44°
12
56°
46°
13
58°
48°
14
63°
46°
15
58°
43°
16
57°
42°
17
57°
41°
18
58°
40°
19
58°
41°
20
59°
40°
21
60°
41°
22
61°
50°
23
62°
51°
24
67°
48°
25
61°
46°
26
62°
44°
27
65°
48°
28
66°
53°
29
68°
53°
30
64°
54°
31
64°
54°
1
65°
53°
2
70°
53°
3
72°
54°
4
74°
56°
5
70°
48°
6
69°
55°
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 48° to 74°, with overnight lows between 36° and 56°. The average high for May is 61° with an average low of 45°. 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.
