S
M
T
W
T
F
S
30
92°
67°
31
91°
66°
1
91°
65°
2
90°
63°
3
90°
66°
4
89°
61°
5
88°
65°
6
90°
64°
7
89°
65°
8
88°
64°
9
88°
65°
10
88°
65°
11
88°
64°
12
85°
64°
13
83°
63°
14
82°
63°
15
82°
62°
16
84°
62°
17
83°
59°
18
82°
58°
19
81°
60°
20
81°
55°
21
80°
54°
22
80°
55°
23
82°
56°
24
83°
59°
25
84°
60°
26
83°
59°
27
84°
58°
28
79°
54°
29
82°
52°
30
82°
57°
1
82°
56°
2
Hist. Avg.
81°
53°
3
Hist. Avg.
80°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Kingston
Kingston's September 2026 forecast shows daily high temperatures ranging from 79° to 92°, with overnight lows between 52° and 67°. The average high for September is 85° with an average low of 61°. 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.