S
M
T
W
T
F
S
26
84°
65°
27
95°
67°
28
91°
72°
29
85°
61°
30
66°
57°
1
61°
51°
2
73°
45°
3
78°
46°
4
84°
60°
5
94°
66°
6
74°
58°
7
64°
56°
8
81°
59°
9
92°
60°
10
93°
63°
11
81°
59°
12
90°
54°
13
92°
63°
14
92°
66°
15
91°
69°
16
90°
73°
17
87°
73°
18
85°
67°
19
86°
65°
20
85°
65°
21
87°
64°
22
82°
63°
23
82°
61°
24
84°
64°
25
87°
65°
26
86°
62°
27
88°
66°
28
87°
67°
29
88°
66°
30
86°
66°
31
82°
65°
1
81°
65°
2
82°
64°
3
83°
64°
4
83°
65°
5
84°
67°
6
83°
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 81° to 92°, with overnight lows between 61° and 73°. The average high for May is 86° with an average low of 66°. 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.
