S
M
T
W
T
F
S
30
64°
55°
31
65°
54°
1
67°
53°
2
67°
54°
3
64°
55°
4
67°
54°
5
66°
52°
6
63°
54°
7
63°
53°
8
64°
51°
9
62°
51°
10
62°
52°
11
63°
49°
12
62°
51°
13
61°
49°
14
61°
52°
15
62°
51°
16
62°
51°
17
61°
50°
18
62°
48°
19
65°
49°
20
61°
47°
21
60°
51°
22
60°
48°
23
61°
46°
24
59°
47°
25
59°
50°
26
60°
51°
27
60°
48°
28
59°
47°
29
58°
45°
30
58°
45°
1
59°
46°
2
59°
50°
3
60°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Killingworth
Killingworth's September 2026 forecast shows daily high temperatures ranging from 58° to 67°, with overnight lows between 45° and 55°. The average high for September is 62° with an average low of 50°. 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 Killingworth. See also: October | November | December.
