S
M
T
W
T
F
S
30
75°
57°
31
72°
63°
1
71°
64°
2
72°
64°
3
81°
63°
4
77°
59°
5
74°
57°
6
73°
52°
7
76°
47°
8
77°
50°
9
72°
62°
10
78°
53°
11
72°
45°
12
81°
64°
13
78°
55°
14
71°
48°
15
78°
59°
16
74°
55°
17
73°
52°
18
67°
50°
19
68°
51°
20
65°
50°
21
66°
49°
22
68°
50°
23
67°
48°
24
68°
52°
25
62°
42°
26
63°
46°
27
68°
51°
28
67°
46°
29
61°
41°
30
63°
51°
1
66°
48°
2
61°
46°
3
66°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in New Hartford
New Hartford's September 2026 forecast shows daily high temperatures ranging from 61° to 81°, with overnight lows between 41° and 64°. The average high for September is 69° with an average low of 50°. 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 Hartford. See also: October | November | December.
