S
M
T
W
T
F
S
30
76°
48°
31
82°
51°
1
80°
53°
2
80°
54°
3
77°
50°
4
77°
54°
5
75°
52°
6
80°
54°
7
76°
50°
8
79°
54°
9
72°
53°
10
68°
44°
11
71°
46°
12
77°
54°
13
76°
53°
14
72°
48°
15
68°
49°
16
68°
46°
17
70°
45°
18
73°
49°
19
73°
48°
20
70°
45°
21
73°
50°
22
72°
49°
23
73°
50°
24
73°
50°
25
71°
49°
26
71°
49°
27
70°
48°
28
70°
49°
29
69°
48°
30
69°
48°
1
68°
47°
2
64°
47°
3
56°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Nelson
Nelson's September 2026 forecast shows daily high temperatures ranging from 56° to 82°, with overnight lows between 44° and 54°. The average high for September is 73° with an average low of 49°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Nelson. See also: October | November | December.
