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