S
M
T
W
T
F
S
30
86°
74°
31
92°
77°
1
95°
74°
2
95°
74°
3
95°
78°
4
95°
74°
5
93°
74°
6
83°
71°
7
82°
67°
8
95°
68°
9
79°
68°
10
81°
63°
11
82°
59°
12
79°
60°
13
67°
55°
14
76°
56°
15
72°
63°
16
70°
65°
17
76°
64°
18
81°
68°
19
79°
63°
20
69°
59°
21
69°
55°
22
70°
55°
23
72°
54°
24
71°
52°
25
74°
55°
26
73°
54°
27
75°
57°
28
76°
54°
29
72°
48°
30
71°
55°
1
75°
54°
2
71°
53°
3
69°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Leighton
Leighton's September 2026 forecast shows daily high temperatures ranging from 69° to 81°, with overnight lows between 48° and 68°. The average high for September is 73° with an average low of 57°. 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 Leighton. See also: October | November | December.