S
M
T
W
T
F
S
29
44°
33°
30
47°
32°
1
46°
33°
2
46°
34°
3
44°
38°
4
49°
38°
5
50°
35°
6
50°
37°
7
49°
37°
8
48°
36°
9
50°
38°
10
50°
37°
11
48°
40°
12
50°
37°
13
51°
36°
14
48°
38°
15
49°
39°
16
49°
40°
17
51°
38°
18
51°
37°
19
50°
34°
20
50°
31°
21
44°
36°
22
45°
32°
23
47°
30°
24
42°
31°
25
42°
31°
26
43°
33°
27
42°
36°
28
45°
37°
29
48°
29°
30
47°
30°
31
43°
30°
1
43°
31°
2
44°
30°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Pinner
Pinner's December 2026 forecast shows daily high temperatures ranging from 42° to 51°, with overnight lows between 29° and 40°. The average high for December is 47° with an average low of 35°. 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 Pinner. See also: January | February | March.