S
M
T
W
T
F
S
29
60°
44°
30
63°
44°
1
64°
42°
2
53°
34°
3
50°
30°
4
52°
34°
5
57°
42°
6
53°
35°
7
49°
34°
8
48°
29°
9
48°
31°
10
47°
28°
11
47°
29°
12
48°
31°
13
54°
30°
14
50°
30°
15
51°
38°
16
51°
36°
17
52°
34°
18
58°
31°
19
50°
25°
20
47°
25°
21
46°
26°
22
48°
29°
23
49°
30°
24
45°
26°
25
46°
25°
26
46°
26°
27
47°
24°
28
47°
26°
29
48°
31°
30
50°
28°
31
48°
26°
1
46°
22°
2
45°
23°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in McCool
McCool's December 2026 forecast shows daily high temperatures ranging from 45° to 64°, with overnight lows between 22° and 44°. The average high for December is 50° with an average low of 31°. 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 McCool. See also: January | February | March.
