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
N/A
11
63°
56°
12
67°
52°
13
64°
59°
14
67°
53°
15
60°
52°
16
61°
54°
17
60°
51°
18
61°
50°
19
60°
48°
20
61°
51°
21
61°
52°
22
62°
53°
23
62°
51°
24
61°
50°
25
58°
51°
26
58°
51°
27
61°
50°
28
59°
48°
29
57°
48°
30
57°
50°
1
59°
50°
2
58°
49°
3
58°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Antrim
Antrim's September 2026 forecast shows daily high temperatures ranging from 57° to 67°, with overnight lows between 48° and 59°. 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 Antrim. See also: October | November | December.
