S
M
T
W
T
F
S
29
45°
30°
30
46°
36°
1
48°
36°
2
48°
35°
3
47°
35°
4
47°
32°
5
45°
36°
6
47°
35°
7
46°
31°
8
43°
31°
9
46°
37°
10
47°
36°
11
47°
35°
12
46°
34°
13
46°
33°
14
42°
32°
15
41°
32°
16
42°
35°
17
44°
33°
18
41°
30°
19
42°
34°
20
47°
32°
21
43°
30°
22
41°
29°
23
45°
33°
24
46°
32°
25
47°
31°
26
47°
31°
27
45°
33°
28
43°
33°
29
42°
32°
30
45°
33°
31
43°
33°
1
44°
32°
2
44°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Silloth
Silloth's December 2026 forecast shows daily high temperatures ranging from 41° to 48°, with overnight lows between 29° and 37°. The average high for December is 45° 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 Silloth. See also: January | February | March.
