S
M
T
W
T
F
S
30
66°
54°
31
63°
55°
1
63°
55°
2
68°
57°
3
66°
57°
4
64°
54°
5
61°
52°
6
68°
57°
7
63°
52°
8
63°
50°
9
59°
50°
10
63°
50°
11
63°
54°
12
66°
51°
13
63°
56°
14
67°
54°
15
60°
50°
16
59°
54°
17
61°
52°
18
63°
53°
19
62°
51°
20
61°
50°
21
60°
51°
22
61°
52°
23
62°
52°
24
61°
51°
25
59°
50°
26
58°
51°
27
61°
51°
28
59°
49°
29
56°
48°
30
57°
50°
1
59°
50°
2
59°
49°
3
58°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Ballymoney
Ballymoney's September 2026 forecast shows daily high temperatures ranging from 56° to 67°, with overnight lows between 47° and 56°. The average high for September is 61° with an average low of 51°. 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 Ballymoney. See also: October | November | December.
