S
M
T
W
T
F
S
31
74°
44°
1
70°
47°
2
76°
47°
3
75°
45°
4
77°
47°
5
76°
62°
6
77°
56°
7
68°
49°
8
67°
41°
9
70°
41°
10
73°
44°
11
75°
43°
12
73°
46°
13
74°
45°
14
77°
52°
15
77°
50°
16
74°
50°
17
71°
45°
18
78°
48°
19
74°
50°
20
69°
40°
21
68°
37°
22
69°
38°
23
70°
52°
24
67°
62°
25
71°
61°
26
73°
60°
27
75°
54°
28
81°
54°
29
75°
48°
30
77°
44°
1
64°
38°
2
62°
36°
3
70°
36°
4
76°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Chatham
Chatham's September 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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. See also: October | November | December.
