S
M
T
W
T
F
S
30
87°
63°
31
78°
62°
1
78°
63°
2
79°
68°
3
79°
63°
4
80°
70°
5
83°
69°
6
85°
62°
7
82°
62°
8
77°
61°
9
76°
60°
10
76°
67°
11
78°
60°
12
79°
61°
13
75°
60°
14
74°
66°
15
78°
67°
16
81°
58°
17
82°
57°
18
72°
56°
19
71°
58°
20
72°
58°
21
71°
59°
22
70°
57°
23
70°
61°
24
71°
62°
25
71°
61°
26
77°
63°
27
76°
57°
28
77°
54°
29
69°
54°
30
68°
60°
1
69°
61°
2
73°
59°
3
74°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Allerton
Allerton's September 2026 forecast shows daily high temperatures ranging from 68° to 87°, with overnight lows between 54° and 70°. The average high for September is 76° with an average low of 61°. 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 Allerton. See also: October | November | December.
