S
M
T
W
T
F
S
30
86°
66°
31
85°
66°
1
84°
65°
2
86°
66°
3
83°
59°
4
82°
57°
5
81°
57°
6
83°
58°
7
87°
59°
8
87°
64°
9
86°
64°
10
82°
57°
11
80°
56°
12
81°
57°
13
82°
55°
14
80°
54°
15
78°
54°
16
79°
53°
17
78°
54°
18
79°
55°
19
82°
58°
20
84°
59°
21
85°
60°
22
85°
61°
23
84°
60°
24
79°
58°
25
80°
58°
26
83°
59°
27
84°
57°
28
83°
58°
29
84°
57°
30
83°
57°
1
83°
56°
2
82°
54°
3
82°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Chapmansboro
Chapmansboro's September 2026 forecast shows daily high temperatures ranging from 78° to 87°, with overnight lows between 48° and 66°. The average high for September is 83° with an average low of 58°. 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 Chapmansboro. See also: October | November | December.
