S
M
T
W
T
F
S
30
65°
51°
31
65°
48°
1
66°
47°
2
63°
48°
3
63°
50°
4
65°
50°
5
63°
50°
6
63°
53°
7
67°
51°
8
67°
52°
9
66°
50°
10
65°
46°
11
63°
48°
12
61°
45°
13
65°
46°
14
62°
45°
15
60°
46°
16
59°
50°
17
63°
46°
18
65°
43°
19
64°
43°
20
60°
46°
21
60°
47°
22
62°
43°
23
60°
42°
24
59°
44°
25
56°
46°
26
59°
48°
27
61°
49°
28
62°
40°
29
62°
39°
30
57°
40°
1
54°
44°
2
58°
44°
3
57°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in New Chelsea
New Chelsea's September 2026 forecast shows daily high temperatures ranging from 54° to 67°, with overnight lows between 39° and 53°. The average high for September is 62° with an average low of 46°. 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 Chelsea. See also: October | November | December.
