S
M
T
W
T
F
S
26
53°
38°
27
49°
41°
28
64°
43°
29
56°
44°
30
54°
43°
1
51°
38°
2
46°
37°
3
58°
39°
4
72°
52°
5
64°
48°
6
49°
40°
7
52°
39°
8
56°
44°
9
61°
46°
10
53°
40°
11
53°
38°
12
53°
42°
13
56°
45°
14
57°
47°
15
63°
47°
16
61°
46°
17
59°
47°
18
60°
49°
19
64°
48°
20
60°
42°
21
61°
43°
22
61°
44°
23
62°
46°
24
63°
46°
25
67°
50°
26
67°
48°
27
64°
46°
28
69°
51°
29
67°
51°
30
73°
53°
31
74°
55°
1
74°
54°
2
70°
52°
3
73°
55°
4
76°
56°
5
76°
57°
6
75°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Nelson
Nelson's May 2026 forecast shows daily high temperatures ranging from 49° to 76°, with overnight lows between 38° and 57°. The average high for May is 63° with an average low of 48°. 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 Nelson. See also: June | July | August.