S
M
T
W
T
F
S
30
65°
57°
31
69°
57°
1
69°
56°
2
68°
55°
3
64°
56°
4
67°
55°
5
66°
51°
6
65°
54°
7
65°
52°
8
66°
52°
9
63°
53°
10
63°
51°
11
64°
50°
12
62°
50°
13
62°
49°
14
63°
53°
15
62°
53°
16
64°
51°
17
64°
53°
18
63°
49°
19
66°
48°
20
61°
49°
21
61°
50°
22
62°
48°
23
60°
47°
24
60°
49°
25
61°
52°
26
61°
51°
27
63°
47°
28
60°
47°
29
59°
46°
30
59°
46°
1
60°
45°
2
59°
47°
3
60°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Irlam
Irlam's September 2026 forecast shows daily high temperatures ranging from 59° to 69°, with overnight lows between 45° and 57°. The average high for September is 63° 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 Irlam. See also: October | November | December.