S
M
T
W
T
F
S
30
84°
59°
31
79°
60°
1
69°
61°
2
74°
61°
3
83°
62°
4
84°
65°
5
79°
57°
6
72°
52°
7
80°
48°
8
82°
53°
9
82°
59°
10
87°
64°
11
78°
56°
12
78°
50°
13
71°
63°
14
74°
51°
15
71°
45°
16
78°
52°
17
80°
65°
18
80°
61°
19
67°
52°
20
59°
54°
21
68°
49°
22
62°
46°
23
62°
44°
24
62°
46°
25
63°
51°
26
65°
50°
27
66°
45°
28
64°
47°
29
66°
48°
30
67°
49°
1
65°
46°
2
66°
43°
3
61°
48°
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 59° to 68°, with overnight lows between 43° and 54°. The average high for September is 64° with an average low of 48°. 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.
