S
M
T
W
T
F
S
30
66°
56°
31
68°
52°
1
67°
50°
2
65°
54°
3
66°
50°
4
70°
49°
5
67°
51°
6
66°
53°
7
69°
54°
8
68°
55°
9
70°
51°
10
68°
54°
11
67°
54°
12
68°
53°
13
69°
53°
14
69°
54°
15
70°
52°
16
68°
51°
17
65°
53°
18
66°
52°
19
67°
47°
20
62°
48°
21
63°
47°
22
62°
46°
23
63°
52°
24
66°
53°
25
64°
53°
26
67°
52°
27
67°
52°
28
66°
50°
29
63°
49°
30
60°
47°
1
60°
44°
2
61°
44°
3
61°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in New Milton
New Milton's September 2026 forecast shows daily high temperatures ranging from 60° to 70°, with overnight lows between 44° and 56°. The average high for September is 66° with an average low of 51°. 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 New Milton. See also: October | November | December.