S
M
T
W
T
F
S
30
68°
52°
31
67°
50°
1
68°
54°
2
68°
55°
3
67°
55°
4
68°
54°
5
63°
52°
6
65°
52°
7
66°
49°
8
63°
55°
9
66°
50°
10
65°
52°
11
62°
51°
12
63°
54°
13
62°
54°
14
63°
55°
15
64°
54°
16
65°
50°
17
65°
51°
18
Hist. Avg.
60°
50°
19
Hist. Avg.
60°
50°
20
Hist. Avg.
60°
50°
21
Hist. Avg.
60°
50°
22
Hist. Avg.
60°
50°
23
Hist. Avg.
59°
50°
24
Hist. Avg.
59°
49°
25
Hist. Avg.
59°
49°
26
Hist. Avg.
59°
49°
27
Hist. Avg.
59°
49°
28
Hist. Avg.
59°
49°
29
Hist. Avg.
58°
49°
30
Hist. Avg.
58°
48°
1
Hist. Avg.
58°
48°
2
Hist. Avg.
58°
48°
3
Hist. Avg.
58°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Aintree
Aintree's September 2026 forecast shows daily high temperatures ranging from 62° to 68°, with overnight lows between 49° and 55°. The average high for September is 65° with an average low of 53°. 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 Aintree. See also: October | November | December.
