S
M
T
W
T
F
S
26
64°
45°
27
66°
48°
28
54°
43°
29
66°
39°
30
72°
43°
1
59°
48°
2
61°
46°
3
61°
48°
4
59°
50°
5
59°
48°
6
57°
45°
7
57°
43°
8
64°
46°
9
66°
43°
10
55°
39°
11
54°
39°
12
57°
41°
13
57°
43°
14
N/A
15
60°
41°
16
58°
48°
17
61°
47°
18
57°
52°
19
63°
51°
20
65°
53°
21
72°
54°
22
74°
53°
23
73°
53°
24
74°
52°
25
73°
50°
26
72°
51°
27
63°
45°
28
62°
43°
29
62°
44°
30
63°
47°
31
64°
49°
1
67°
50°
2
70°
51°
3
71°
51°
4
70°
50°
5
68°
50°
6
66°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Chepstow
Chepstow's May 2026 forecast shows daily high temperatures ranging from 57° to 74°, with overnight lows between 41° and 54°. The average high for May is 66° with an average low of 49°. 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 Chepstow. See also: June | July | August.
