S
M
T
W
T
F
S
26
66°
45°
27
70°
46°
28
63°
46°
29
64°
46°
30
70°
52°
1
75°
46°
2
72°
50°
3
66°
54°
4
N/A
5
64°
48°
6
59°
43°
7
62°
44°
8
68°
49°
9
69°
51°
10
65°
48°
11
64°
45°
12
62°
47°
13
61°
47°
14
62°
48°
15
64°
47°
16
65°
48°
17
64°
49°
18
59°
42°
19
60°
46°
20
59°
43°
21
59°
42°
22
60°
43°
23
60°
43°
24
61°
48°
25
61°
49°
26
62°
49°
27
61°
46°
28
61°
44°
29
62°
43°
30
62°
46°
31
67°
48°
1
67°
47°
2
66°
50°
3
68°
48°
4
64°
48°
5
66°
49°
6
68°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Staines-Upon-Thames
Staines-Upon-Thames's May 2026 forecast shows daily high temperatures ranging from 59° to 69°, with overnight lows between 42° and 52°. The average high for May is 63° with an average low of 47°. 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 Staines-Upon-Thames. See also: June | July | August.
