S
M
T
W
T
F
S
30
69°
50°
31
76°
54°
1
76°
57°
2
69°
54°
3
65°
49°
4
64°
47°
5
68°
49°
6
69°
49°
7
70°
50°
8
70°
51°
9
72°
50°
10
71°
49°
11
71°
49°
12
64°
51°
13
65°
47°
14
68°
49°
15
71°
50°
16
64°
49°
17
63°
50°
18
63°
46°
19
64°
51°
20
62°
46°
21
62°
43°
22
63°
44°
23
61°
43°
24
60°
42°
25
61°
42°
26
65°
44°
27
67°
50°
28
61°
49°
29
60°
44°
30
68°
47°
1
64°
50°
2
59°
49°
3
61°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Carnation
Carnation's September 2026 forecast shows daily high temperatures ranging from 59° to 76°, with overnight lows between 42° and 57°. The average high for September is 66° with an average low of 48°. 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 Carnation. See also: October | November | December.
