S
M
T
W
T
F
S
26
84°
60°
27
85°
61°
28
75°
66°
29
83°
65°
30
74°
63°
1
67°
55°
2
73°
50°
3
75°
47°
4
82°
49°
5
83°
52°
6
82°
64°
7
76°
63°
8
70°
61°
9
71°
62°
10
81°
63°
11
84°
65°
12
74°
65°
13
85°
58°
14
82°
56°
15
84°
53°
16
89°
57°
17
91°
67°
18
92°
67°
19
93°
72°
20
93°
72°
21
86°
71°
22
84°
71°
23
88°
68°
24
82°
70°
25
78°
70°
26
82°
71°
27
81°
70°
28
84°
69°
29
82°
68°
30
81°
67°
31
80°
66°
1
81°
67°
2
82°
65°
3
84°
67°
4
85°
68°
5
89°
67°
6
85°
67°
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 78° to 89°, with overnight lows between 65° and 71°. The average high for May is 83° with an average low of 68°. 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.
