S
M
T
W
T
F
S
26
66°
39°
27
70°
43°
28
63°
46°
29
63°
46°
30
70°
48°
1
77°
43°
2
72°
46°
3
66°
54°
4
59°
52°
5
63°
50°
6
57°
45°
7
63°
45°
8
66°
41°
9
70°
43°
10
55°
36°
11
55°
34°
12
59°
32°
13
55°
43°
14
55°
43°
15
57°
41°
16
59°
36°
17
63°
45°
18
57°
45°
19
63°
52°
20
68°
54°
21
78°
58°
22
86°
64°
23
90°
64°
24
93°
65°
25
94°
62°
26
87°
59°
27
77°
55°
28
79°
57°
29
79°
58°
30
72°
53°
31
70°
52°
1
69°
53°
2
62°
44°
3
62°
47°
4
63°
45°
5
63°
47°
6
64°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Osterley
Osterley's May 2026 forecast shows daily high temperatures ranging from 62° to 94°, with overnight lows between 44° and 65°. The average high for May is 75° with an average low of 55°. 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 Osterley. See also: June | July | August.
