S
M
T
W
T
F
S
30
71°
53°
31
70°
53°
1
69°
52°
2
73°
52°
3
72°
54°
4
72°
52°
5
68°
51°
6
67°
50°
7
68°
48°
8
67°
51°
9
69°
53°
10
70°
50°
11
67°
52°
12
68°
51°
13
67°
51°
14
66°
52°
15
69°
51°
16
69°
47°
17
68°
48°
18
Hist. Avg.
64°
50°
19
Hist. Avg.
64°
49°
20
Hist. Avg.
64°
49°
21
Hist. Avg.
63°
49°
22
Hist. Avg.
63°
49°
23
Hist. Avg.
63°
49°
24
Hist. Avg.
63°
49°
25
Hist. Avg.
63°
49°
26
Hist. Avg.
62°
48°
27
Hist. Avg.
62°
48°
28
Hist. Avg.
62°
48°
29
Hist. Avg.
62°
48°
30
Hist. Avg.
61°
48°
1
Hist. Avg.
61°
48°
2
Hist. Avg.
61°
47°
3
Hist. Avg.
60°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Great Leighs
Great Leighs's September 2026 forecast shows daily high temperatures ranging from 66° to 73°, with overnight lows between 47° and 54°. The average high for September is 69° 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 Great Leighs. See also: October | November | December.