S
M
T
W
T
F
S
30
79°
58°
31
80°
62°
1
81°
62°
2
80°
61°
3
82°
58°
4
79°
52°
5
78°
54°
6
78°
53°
7
79°
55°
8
83°
55°
9
83°
59°
10
84°
52°
11
77°
51°
12
77°
54°
13
78°
50°
14
76°
50°
15
73°
52°
16
75°
51°
17
74°
50°
18
75°
49°
19
78°
48°
20
74°
53°
21
78°
48°
22
74°
54°
23
79°
54°
24
80°
53°
25
80°
54°
26
78°
54°
27
77°
53°
28
80°
53°
29
79°
48°
30
75°
51°
1
77°
53°
2
78°
46°
3
78°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Carlisle
Carlisle's September 2026 forecast shows daily high temperatures ranging from 73° to 84°, with overnight lows between 42° and 62°. The average high for September is 78° with an average low of 53°. 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 Carlisle. See also: October | November | December.
