S
M
T
W
T
F
S
30
82°
66°
31
87°
64°
1
84°
55°
2
86°
62°
3
90°
66°
4
86°
65°
5
85°
61°
6
82°
67°
7
80°
66°
8
88°
60°
9
77°
55°
10
82°
50°
11
87°
63°
12
69°
51°
13
68°
49°
14
61°
49°
15
69°
50°
16
72°
46°
17
72°
50°
18
60°
57°
19
64°
56°
20
64°
47°
21
61°
43°
22
61°
43°
23
63°
51°
24
62°
52°
25
69°
53°
26
66°
50°
27
66°
52°
28
63°
49°
29
63°
47°
30
64°
47°
1
65°
51°
2
62°
42°
3
61°
48°
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 61° to 69°, with overnight lows between 42° and 53°. The average high for September is 64° 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 September weather will actually feel in Nelson. See also: October | November | December.
