S
M
T
W
T
F
S
30
92°
70°
31
91°
70°
1
91°
72°
2
92°
70°
3
90°
68°
4
87°
69°
5
87°
68°
6
91°
72°
7
91°
73°
8
90°
71°
9
90°
72°
10
89°
72°
11
90°
71°
12
90°
72°
13
89°
72°
14
90°
70°
15
88°
68°
16
87°
70°
17
89°
66°
18
86°
66°
19
86°
68°
20
87°
70°
21
88°
69°
22
85°
68°
23
86°
68°
24
87°
69°
25
86°
67°
26
86°
65°
27
Hist. Avg.
84°
66°
28
Hist. Avg.
84°
65°
29
Hist. Avg.
84°
65°
30
Hist. Avg.
83°
64°
1
Hist. Avg.
83°
64°
2
Hist. Avg.
83°
64°
3
Hist. Avg.
82°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Kingston
Kingston's September 2026 forecast shows daily high temperatures ranging from 85° to 92°, with overnight lows between 65° and 73°. The average high for September is 89° with an average low of 70°. 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 Kingston. See also: October | November | December.