S
M
T
W
T
F
S
30
87°
67°
31
93°
70°
1
95°
71°
2
97°
74°
3
98°
70°
4
98°
69°
5
92°
65°
6
90°
64°
7
89°
65°
8
90°
66°
9
92°
68°
10
90°
67°
11
89°
63°
12
82°
64°
13
83°
61°
14
87°
66°
15
86°
65°
16
85°
65°
17
82°
64°
18
82°
63°
19
79°
60°
20
78°
59°
21
78°
61°
22
80°
62°
23
82°
62°
24
84°
64°
25
83°
63°
26
77°
62°
27
78°
63°
28
78°
63°
29
76°
62°
30
77°
61°
1
75°
60°
2
75°
60°
3
78°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Carthage
Carthage's September 2026 forecast shows daily high temperatures ranging from 75° to 98°, with overnight lows between 59° and 74°. The average high for September is 85° with an average low of 64°. 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 Carthage. See also: October | November | December.