S
M
T
W
T
F
S
29
46°
34°
30
45°
39°
1
47°
36°
2
46°
35°
3
44°
37°
4
45°
34°
5
44°
31°
6
44°
30°
7
45°
33°
8
43°
32°
9
43°
32°
10
45°
30°
11
44°
32°
12
44°
32°
13
45°
33°
14
44°
34°
15
45°
31°
16
47°
31°
17
44°
32°
18
43°
32°
19
43°
33°
20
44°
30°
21
43°
30°
22
43°
32°
23
44°
32°
24
43°
34°
25
43°
33°
26
44°
31°
27
45°
33°
28
42°
38°
29
47°
39°
30
48°
36°
31
42°
32°
1
41°
30°
2
Hist. Avg.
41°
32°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Luton
Luton's December 2026 forecast shows daily high temperatures ranging from 41° to 48°, with overnight lows between 30° and 39°. The average high for December is 44° with an average low of 33°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how December weather will actually feel in Luton. See also: January | February | March.
