S
M
T
W
T
F
S
30
91°
69°
31
90°
70°
1
87°
67°
2
87°
64°
3
86°
64°
4
85°
63°
5
86°
64°
6
89°
65°
7
90°
68°
8
90°
66°
9
86°
67°
10
90°
67°
11
88°
66°
12
89°
67°
13
90°
68°
14
90°
66°
15
89°
66°
16
89°
65°
17
90°
67°
18
88°
65°
19
87°
64°
20
86°
64°
21
87°
63°
22
87°
59°
23
84°
63°
24
83°
64°
25
Hist. Avg.
86°
63°
26
Hist. Avg.
86°
62°
27
Hist. Avg.
85°
62°
28
Hist. Avg.
85°
62°
29
Hist. Avg.
85°
61°
30
Hist. Avg.
84°
61°
1
Hist. Avg.
84°
60°
2
Hist. Avg.
84°
60°
3
Hist. Avg.
83°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in New Hamilton
New Hamilton's September 2026 forecast shows daily high temperatures ranging from 83° to 91°, with overnight lows between 59° and 70°. The average high for September is 88° with an average low of 65°. 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 Hamilton. See also: October | November | December.
