S
M
T
W
T
F
S
26
59°
41°
27
69°
38°
28
64°
39°
29
64°
48°
30
61°
48°
1
65°
42°
2
61°
46°
3
61°
44°
4
74°
46°
5
84°
51°
6
70°
55°
7
64°
48°
8
62°
43°
9
65°
49°
10
74°
50°
11
62°
48°
12
68°
40°
13
73°
51°
14
67°
50°
15
63°
44°
16
78°
60°
17
84°
57°
18
85°
61°
19
94°
64°
20
85°
53°
21
67°
45°
22
67°
48°
23
69°
50°
24
71°
51°
25
72°
56°
26
75°
57°
27
76°
58°
28
78°
51°
29
67°
50°
30
68°
56°
31
75°
53°
1
68°
51°
2
69°
50°
3
68°
50°
4
69°
49°
5
70°
56°
6
75°
58°
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 63° to 94°, with overnight lows between 44° and 64°. The average high for May is 74° with an average low of 53°. 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.
