S
M
T
W
T
F
S
30
69°
54°
31
70°
53°
1
70°
52°
2
71°
52°
3
70°
58°
4
70°
55°
5
74°
52°
6
69°
51°
7
68°
53°
8
69°
57°
9
68°
57°
10
71°
55°
11
71°
53°
12
66°
53°
13
68°
57°
14
67°
50°
15
66°
50°
16
Hist. Avg.
71°
49°
17
Hist. Avg.
70°
49°
18
Hist. Avg.
70°
48°
19
Hist. Avg.
70°
48°
20
Hist. Avg.
69°
48°
21
Hist. Avg.
69°
47°
22
Hist. Avg.
68°
47°
23
Hist. Avg.
68°
46°
24
Hist. Avg.
68°
46°
25
Hist. Avg.
67°
46°
26
Hist. Avg.
67°
45°
27
Hist. Avg.
66°
45°
28
Hist. Avg.
66°
45°
29
Hist. Avg.
66°
44°
30
Hist. Avg.
65°
44°
1
Hist. Avg.
65°
43°
2
Hist. Avg.
64°
43°
3
Hist. Avg.
64°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in New Harbor
New Harbor's September 2026 forecast shows daily high temperatures ranging from 66° to 74°, with overnight lows between 50° and 58°. The average high for September is 69° with an average low of 54°. 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 Harbor. See also: October | November | December.
