S
M
T
W
T
F
S
30
78°
57°
31
75°
54°
1
73°
56°
2
73°
55°
3
74°
56°
4
74°
55°
5
72°
56°
6
72°
59°
7
73°
61°
8
75°
57°
9
72°
55°
10
72°
54°
11
71°
55°
12
71°
57°
13
70°
56°
14
71°
55°
15
72°
59°
16
73°
52°
17
74°
53°
18
72°
53°
19
70°
60°
20
74°
57°
21
73°
55°
22
Hist. Avg.
73°
51°
23
Hist. Avg.
73°
51°
24
Hist. Avg.
72°
51°
25
Hist. Avg.
72°
50°
26
Hist. Avg.
71°
50°
27
Hist. Avg.
71°
49°
28
Hist. Avg.
70°
49°
29
Hist. Avg.
70°
49°
30
Hist. Avg.
69°
48°
1
Hist. Avg.
69°
48°
2
Hist. Avg.
68°
47°
3
Hist. Avg.
68°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Chatham-Kent
Chatham-Kent's September 2026 forecast shows daily high temperatures ranging from 70° to 78°, with overnight lows between 52° and 61°. The average high for September is 73° with an average low of 56°. 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 Chatham-Kent. See also: October | November | December.
