S
M
T
W
T
F
S
30
67°
48°
31
66°
49°
1
69°
50°
2
69°
52°
3
70°
53°
4
69°
48°
5
67°
47°
6
65°
50°
7
68°
49°
8
69°
48°
9
69°
52°
10
68°
52°
11
69°
51°
12
69°
49°
13
66°
45°
14
64°
50°
15
63°
51°
16
64°
52°
17
63°
51°
18
67°
51°
19
65°
50°
20
66°
51°
21
67°
48°
22
66°
45°
23
61°
44°
24
61°
45°
25
62°
45°
26
63°
47°
27
62°
46°
28
60°
50°
29
63°
49°
30
62°
48°
1
63°
49°
2
64°
48°
3
60°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Longford
Longford's September 2026 forecast shows daily high temperatures ranging from 60° to 70°, with overnight lows between 43° and 53°. The average high for September is 65° with an average low of 49°. 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 Longford. See also: October | November | December.
