S
M
T
W
T
F
S
30
59°
55°
31
68°
50°
1
66°
50°
2
59°
46°
3
66°
57°
4
66°
54°
5
66°
52°
6
64°
52°
7
64°
52°
8
64°
52°
9
60°
50°
10
60°
51°
11
63°
54°
12
68°
53°
13
58°
54°
14
62°
54°
15
65°
49°
16
61°
49°
17
60°
48°
18
60°
49°
19
62°
51°
20
61°
50°
21
62°
49°
22
63°
51°
23
62°
49°
24
61°
48°
25
57°
48°
26
57°
45°
27
56°
47°
28
55°
44°
29
55°
45°
30
56°
48°
1
58°
48°
2
57°
47°
3
58°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Newtonhill
Newtonhill's September 2026 forecast shows daily high temperatures ranging from 55° to 68°, with overnight lows between 44° and 54°. The average high for September is 60° with an average low of 49°. 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 Newtonhill. See also: October | November | December.