S
M
T
W
T
F
S
30
68°
50°
31
66°
51°
1
64°
53°
2
65°
52°
3
62°
52°
4
62°
51°
5
64°
52°
6
63°
52°
7
64°
50°
8
61°
51°
9
64°
53°
10
65°
51°
11
65°
51°
12
64°
52°
13
61°
52°
14
60°
48°
15
60°
47°
16
59°
46°
17
59°
46°
18
60°
48°
19
59°
48°
20
60°
46°
21
60°
48°
22
61°
50°
23
60°
49°
24
58°
48°
25
59°
48°
26
60°
46°
27
Hist. Avg.
58°
47°
28
Hist. Avg.
58°
46°
29
Hist. Avg.
58°
46°
30
Hist. Avg.
58°
46°
1
Hist. Avg.
57°
46°
2
Hist. Avg.
57°
46°
3
Hist. Avg.
57°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Ballymena
Ballymena's September 2026 forecast shows daily high temperatures ranging from 58° to 68°, with overnight lows between 46° and 53°. 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 Ballymena. See also: October | November | December.
