S
M
T
W
T
F
S
29
33°
4°
30
28°
-1°
1
25°
0°
2
27°
5°
3
34°
5°
4
27°
3°
5
26°
1°
6
25°
-3°
7
23°
-4°
8
25°
-1°
9
34°
0°
10
36°
-1°
11
35°
2°
12
36°
6°
13
36°
2°
14
28°
5°
15
27°
8°
16
28°
2°
17
26°
-3°
18
25°
-2°
19
26°
-1°
20
25°
3°
21
27°
1°
22
26°
-2°
23
26°
5°
24
27°
-1°
25
27°
7°
26
28°
8°
27
34°
-3°
28
28°
-3°
29
25°
-1°
30
26°
-5°
31
24°
0°
1
25°
4°
2
30°
6°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Silverthorne
Silverthorne's December 2026 forecast shows daily high temperatures ranging from 23° to 36°, with overnight lows between -5° and 8°. The average high for December is 28° with an average low of 1°. 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 Silverthorne. See also: January | February | March.
