S
M
T
W
T
F
S
30
78°
65°
31
86°
71°
1
90°
72°
2
96°
70°
3
89°
66°
4
78°
67°
5
77°
59°
6
78°
55°
7
77°
55°
8
82°
54°
9
80°
66°
10
81°
63°
11
77°
53°
12
82°
62°
13
82°
52°
14
71°
55°
15
85°
68°
16
75°
64°
17
79°
59°
18
76°
60°
19
78°
63°
20
78°
58°
21
69°
59°
22
70°
56°
23
71°
54°
24
72°
55°
25
73°
53°
26
71°
52°
27
76°
55°
28
75°
56°
29
74°
55°
30
69°
55°
1
73°
54°
2
74°
53°
3
70°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Carleton
Carleton's September 2026 forecast shows daily high temperatures ranging from 69° to 85°, with overnight lows between 52° and 68°. The average high for September is 74° with an average low of 57°. 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 Carleton. See also: October | November | December.
