S
M
T
W
T
F
S
29
43°
26°
30
46°
30°
1
43°
29°
2
45°
27°
3
43°
27°
4
41°
29°
5
46°
31°
6
45°
27°
7
47°
21°
8
45°
21°
9
36°
23°
10
38°
25°
11
41°
25°
12
37°
24°
13
37°
26°
14
40°
24°
15
43°
19°
16
42°
20°
17
32°
20°
18
36°
17°
19
31°
21°
20
35°
23°
21
38°
25°
22
40°
24°
23
40°
18°
24
36°
13°
25
29°
16°
26
30°
24°
27
38°
20°
28
39°
17°
29
33°
13°
30
29°
19°
31
32°
5°
1
33°
3°
2
19°
7°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Sterling
Sterling's December 2026 forecast shows daily high temperatures ranging from 19° to 47°, with overnight lows between 3° and 31°. The average high for December is 38° with an average low of 21°. 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 Sterling. See also: January | February | March.
