S
M
T
W
T
F
S
29
46°
20°
30
45°
20°
1
40°
19°
2
44°
19°
3
38°
18°
4
42°
19°
5
46°
20°
6
47°
18°
7
44°
17°
8
45°
17°
9
39°
18°
10
42°
17°
11
32°
0°
12
30°
1°
13
31°
7°
14
37°
8°
15
39°
14°
16
40°
12°
17
45°
11°
18
40°
13°
19
43°
13°
20
43°
9°
21
41°
16°
22
46°
6°
23
39°
1°
24
31°
2°
25
29°
10°
26
40°
14°
27
41°
16°
28
42°
15°
29
44°
15°
30
43°
14°
31
38°
6°
1
36°
-2°
2
32°
-2°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Alliance
Alliance's December 2026 forecast shows daily high temperatures ranging from 29° to 47°, with overnight lows between -2° and 20°. The average high for December is 40° with an average low of 12°. 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 Alliance. See also: January | February | March.
