S
M
T
W
T
F
S
26
60°
29°
27
62°
39°
28
64°
34°
29
71°
38°
30
74°
40°
1
74°
44°
2
72°
41°
3
79°
43°
4
84°
44°
5
85°
42°
6
78°
44°
7
76°
43°
8
72°
41°
9
72°
43°
10
71°
42°
11
69°
43°
12
73°
53°
13
63°
37°
14
61°
38°
15
66°
40°
16
67°
41°
17
65°
41°
18
64°
43°
19
62°
44°
20
62°
46°
21
63°
42°
22
61°
40°
23
62°
40°
24
65°
42°
25
68°
42°
26
71°
45°
27
72°
50°
28
70°
47°
29
66°
43°
30
67°
45°
31
66°
48°
1
64°
44°
2
64°
44°
3
71°
48°
4
66°
46°
5
66°
44°
6
72°
51°
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 61° to 85°, with overnight lows between 37° and 53°. The average high for May is 69° 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 Nelson. See also: June | July | August.