S
M
T
W
T
F
S
30
65°
55°
31
65°
55°
1
66°
56°
2
66°
54°
3
64°
53°
4
65°
52°
5
65°
55°
6
66°
54°
7
66°
55°
8
65°
54°
9
65°
53°
10
64°
52°
11
64°
54°
12
63°
53°
13
64°
52°
14
62°
52°
15
61°
53°
16
62°
52°
17
63°
48°
18
59°
53°
19
60°
52°
20
62°
53°
21
62°
52°
22
62°
51°
23
63°
51°
24
Hist. Avg.
61°
49°
25
Hist. Avg.
61°
48°
26
Hist. Avg.
61°
48°
27
Hist. Avg.
61°
48°
28
Hist. Avg.
61°
48°
29
Hist. Avg.
60°
48°
30
Hist. Avg.
60°
48°
1
Hist. Avg.
60°
47°
2
Hist. Avg.
60°
47°
3
Hist. Avg.
59°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Nelson
Nelson's September 2026 forecast shows daily high temperatures ranging from 59° to 66°, with overnight lows between 48° and 56°. The average high for September is 64° with an average low of 53°. 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.
