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