S
M
T
W
T
F
S
26
55°
48°
27
59°
45°
28
57°
46°
29
64°
45°
30
73°
48°
1
64°
50°
2
57°
50°
3
59°
50°
4
57°
45°
5
55°
41°
6
57°
41°
7
55°
43°
8
59°
48°
9
55°
46°
10
50°
46°
11
54°
43°
12
57°
43°
13
55°
48°
14
54°
45°
15
54°
48°
16
54°
45°
17
55°
46°
18
55°
48°
19
57°
52°
20
59°
52°
21
59°
54°
22
61°
54°
23
57°
45°
24
74°
53°
25
82°
57°
26
77°
55°
27
76°
54°
28
71°
53°
29
68°
51°
30
67°
52°
31
65°
51°
1
63°
52°
2
59°
49°
3
58°
49°
4
59°
48°
5
58°
50°
6
59°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Cwm Penmachno
Cwm Penmachno's May 2026 forecast shows daily high temperatures ranging from 57° to 82°, with overnight lows between 45° and 57°. The average high for May is 66° with an average low of 51°. 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 Cwm Penmachno. See also: June | July | August.
