S
M
T
W
T
F
S
30
70°
61°
31
66°
57°
1
68°
54°
2
68°
55°
3
72°
57°
4
79°
61°
5
68°
54°
6
72°
50°
7
82°
61°
8
79°
59°
9
63°
50°
10
71°
49°
11
66°
50°
12
72°
55°
13
64°
55°
14
70°
54°
15
75°
53°
16
66°
49°
17
66°
50°
18
65°
50°
19
68°
49°
20
69°
48°
21
67°
49°
22
66°
47°
23
70°
53°
24
71°
54°
25
70°
49°
26
62°
48°
27
62°
53°
28
65°
46°
29
61°
45°
30
59°
46°
1
59°
46°
2
60°
45°
3
62°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Altlay
Altlay's September 2026 forecast shows daily high temperatures ranging from 59° to 75°, with overnight lows between 45° and 55°. The average high for September is 66° 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 Altlay. See also: October | November | December.
