S
M
T
W
T
F
S
29
61°
39°
30
61°
32°
1
47°
27°
2
46°
28°
3
53°
38°
4
56°
37°
5
50°
34°
6
49°
30°
7
45°
25°
8
43°
24°
9
44°
26°
10
47°
32°
11
51°
31°
12
57°
34°
13
50°
34°
14
47°
26°
15
46°
26°
16
46°
28°
17
45°
20°
18
42°
19°
19
43°
17°
20
39°
22°
21
44°
27°
22
48°
23°
23
42°
22°
24
43°
20°
25
42°
25°
26
47°
31°
27
48°
27°
28
45°
23°
29
42°
24°
30
42°
22°
31
44°
18°
1
40°
21°
2
42°
31°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Carnegie
Carnegie's December 2026 forecast shows daily high temperatures ranging from 39° to 61°, with overnight lows between 17° and 39°. The average high for December is 47° with an average low of 27°. 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 Carnegie. See also: January | February | March.
