S
M
T
W
T
F
S
30
90°
70°
31
88°
67°
1
89°
66°
2
88°
69°
3
94°
70°
4
94°
67°
5
94°
68°
6
91°
63°
7
84°
63°
8
85°
62°
9
83°
60°
10
80°
52°
11
78°
53°
12
79°
56°
13
80°
55°
14
77°
51°
15
82°
57°
16
81°
57°
17
83°
58°
18
82°
58°
19
82°
55°
20
80°
56°
21
81°
57°
22
82°
57°
23
82°
56°
24
81°
56°
25
80°
55°
26
79°
53°
27
80°
54°
28
80°
54°
29
79°
53°
30
79°
54°
1
78°
54°
2
79°
53°
3
78°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Luton
Luton's September 2026 forecast shows daily high temperatures ranging from 77° to 94°, with overnight lows between 51° and 70°. The average high for September is 83° with an average low of 58°. 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 Luton. See also: October | November | December.
