S
M
T
W
T
F
S
26
66°
52°
27
69°
51°
28
76°
47°
29
81°
49°
30
85°
51°
1
89°
54°
2
90°
56°
3
78°
55°
4
66°
57°
5
72°
56°
6
79°
50°
7
89°
56°
8
91°
59°
9
91°
55°
10
96°
60°
11
98°
62°
12
99°
61°
13
82°
54°
14
88°
57°
15
92°
57°
16
86°
55°
17
84°
52°
18
85°
57°
19
90°
60°
20
94°
62°
21
95°
61°
22
91°
64°
23
91°
61°
24
88°
60°
25
86°
59°
26
83°
58°
27
77°
54°
28
78°
55°
29
78°
55°
30
81°
58°
31
86°
62°
1
87°
63°
2
88°
64°
3
88°
64°
4
81°
57°
5
81°
61°
6
87°
61°
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 77° to 95°, with overnight lows between 52° and 64°. The average high for May is 86° with an average low of 59°. 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.
