S
M
T
W
T
F
S
26
62°
46°
27
76°
44°
28
72°
55°
29
60°
46°
30
57°
41°
1
51°
37°
2
49°
32°
3
61°
32°
4
72°
58°
5
67°
46°
6
54°
39°
7
55°
37°
8
61°
44°
9
63°
44°
10
62°
48°
11
60°
44°
12
61°
47°
13
65°
51°
14
63°
46°
15
65°
48°
16
69°
50°
17
72°
52°
18
75°
56°
19
74°
55°
20
77°
51°
21
74°
52°
22
69°
47°
23
66°
47°
24
68°
49°
25
69°
51°
26
68°
49°
27
69°
49°
28
69°
50°
29
70°
50°
30
71°
52°
31
77°
59°
1
72°
54°
2
73°
52°
3
74°
58°
4
75°
58°
5
79°
60°
6
81°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Radnor
Radnor's May 2026 forecast shows daily high temperatures ranging from 54° to 81°, with overnight lows between 37° and 61°. The average high for May is 69° with an average low of 50°. 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 Radnor. See also: June | July | August.
