S
M
T
W
T
F
S
26
57°
36°
27
67°
41°
28
62°
45°
29
58°
46°
30
50°
33°
1
47°
32°
2
46°
31°
3
49°
35°
4
55°
39°
5
61°
43°
6
56°
42°
7
57°
40°
8
57°
40°
9
54°
41°
10
58°
42°
11
59°
42°
12
59°
45°
13
60°
42°
14
59°
39°
15
58°
39°
16
57°
40°
17
57°
39°
18
59°
40°
19
65°
47°
20
63°
42°
21
60°
41°
22
60°
40°
23
61°
41°
24
62°
44°
25
70°
50°
26
67°
43°
27
61°
43°
28
62°
44°
29
65°
48°
30
72°
52°
31
72°
52°
1
71°
51°
2
73°
54°
3
74°
54°
4
75°
52°
5
73°
47°
6
66°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Newfoundland
Newfoundland's May 2026 forecast shows daily high temperatures ranging from 46° to 75°, with overnight lows between 31° and 54°. The average high for May is 61° with an average low of 43°. 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 Newfoundland. See also: June | July | August.
