S
M
T
W
T
F
S
29
59°
40°
30
60°
33°
1
45°
28°
2
45°
29°
3
52°
39°
4
55°
38°
5
49°
35°
6
47°
31°
7
44°
26°
8
42°
25°
9
43°
28°
10
46°
34°
11
50°
32°
12
56°
35°
13
49°
35°
14
45°
27°
15
45°
28°
16
45°
30°
17
44°
22°
18
40°
20°
19
41°
19°
20
37°
23°
21
43°
29°
22
47°
25°
23
41°
24°
24
42°
22°
25
41°
26°
26
46°
32°
27
47°
28°
28
44°
24°
29
41°
25°
30
40°
23°
31
43°
19°
1
39°
22°
2
41°
32°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Sentinel
Sentinel's December 2026 forecast shows daily high temperatures ranging from 37° to 60°, with overnight lows between 19° and 40°. The average high for December is 46° with an average low of 28°. 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 Sentinel. See also: January | February | March.
