S
M
T
W
T
F
S
29
44°
36°
30
47°
41°
1
50°
40°
2
50°
35°
3
44°
35°
4
44°
34°
5
43°
34°
6
43°
33°
7
42°
35°
8
48°
38°
9
45°
38°
10
49°
40°
11
49°
42°
12
50°
39°
13
49°
38°
14
48°
38°
15
48°
34°
16
46°
35°
17
43°
34°
18
43°
34°
19
44°
35°
20
44°
34°
21
43°
40°
22
49°
39°
23
50°
39°
24
49°
38°
25
49°
38°
26
48°
39°
27
47°
38°
28
48°
38°
29
47°
37°
30
47°
40°
31
48°
39°
1
49°
37°
2
48°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Middlesbrough
Middlesbrough's December 2026 forecast shows daily high temperatures ranging from 42° to 50°, with overnight lows between 33° and 42°. The average high for December is 47° with an average low of 37°. 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 Middlesbrough. See also: January | February | March.
