S
M
T
W
T
F
S
30
69°
54°
31
76°
51°
1
70°
51°
2
69°
52°
3
68°
58°
4
72°
57°
5
75°
56°
6
75°
58°
7
66°
51°
8
65°
51°
9
66°
50°
10
66°
54°
11
73°
57°
12
71°
58°
13
65°
58°
14
65°
59°
15
64°
57°
16
64°
56°
17
65°
54°
18
64°
55°
19
62°
51°
20
65°
49°
21
64°
48°
22
63°
49°
23
63°
48°
24
65°
53°
25
69°
55°
26
67°
52°
27
62°
55°
28
61°
54°
29
Hist. Avg.
64°
50°
30
Hist. Avg.
63°
50°
1
Hist. Avg.
63°
49°
2
Hist. Avg.
62°
49°
3
Hist. Avg.
62°
49°
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 61° to 76°, with overnight lows between 48° and 59°. The average high for September is 67° with an average low of 54°. 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.