S
M
T
W
T
F
S
26
53°
40°
27
54°
42°
28
53°
40°
29
55°
44°
30
54°
43°
1
56°
45°
2
57°
45°
3
56°
44°
4
56°
42°
5
55°
41°
6
56°
42°
7
55°
44°
8
57°
43°
9
57°
43°
10
56°
45°
11
58°
42°
12
57°
44°
13
56°
45°
14
58°
47°
15
57°
47°
16
58°
46°
17
58°
48°
18
57°
48°
19
58°
47°
20
58°
48°
21
57°
48°
22
56°
47°
23
55°
48°
24
55°
47°
25
56°
47°
26
56°
44°
27
57°
47°
28
59°
48°
29
57°
45°
30
56°
45°
31
56°
44°
1
57°
46°
2
60°
46°
3
60°
48°
4
61°
48°
5
61°
50°
6
62°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Snowdon Mountain Railway
Snowdon Mountain Railway's May 2026 forecast shows daily high temperatures ranging from 53° to 62°, with overnight lows between 40° and 50°. The average high for May is 57° with an average low of 45°. 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 Snowdon Mountain Railway. See also: June | July | August.
