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