S
M
T
W
T
F
S
30
86°
68°
31
91°
70°
1
88°
68°
2
90°
64°
3
86°
72°
4
91°
73°
5
81°
66°
6
79°
66°
7
81°
64°
8
81°
64°
9
84°
59°
10
77°
54°
11
82°
55°
12
75°
55°
13
70°
48°
14
63°
46°
15
70°
52°
16
73°
50°
17
70°
59°
18
64°
55°
19
63°
55°
20
68°
55°
21
61°
52°
22
63°
50°
23
68°
45°
24
66°
50°
25
72°
59°
26
64°
54°
27
64°
61°
28
72°
55°
29
73°
55°
30
73°
63°
1
68°
45°
2
63°
39°
3
66°
49°
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 66° to 66°, with overnight lows between 49° and 49°. The average high for September is 66° 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.
