S
M
T
W
T
F
S
29
63°
49°
30
66°
50°
1
67°
49°
2
67°
45°
3
56°
39°
4
56°
39°
5
63°
47°
6
64°
42°
7
55°
40°
8
53°
39°
9
53°
41°
10
54°
36°
11
53°
34°
12
53°
34°
13
57°
36°
14
56°
35°
15
55°
46°
16
59°
39°
17
63°
45°
18
61°
35°
19
60°
31°
20
53°
28°
21
49°
30°
22
51°
34°
23
52°
33°
24
53°
31°
25
51°
30°
26
51°
30°
27
50°
31°
28
53°
31°
29
53°
39°
30
57°
34°
31
63°
30°
1
52°
28°
2
50°
28°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Excel
Excel's December 2026 forecast shows daily high temperatures ranging from 49° to 67°, with overnight lows between 28° and 50°. The average high for December is 56° with an average low of 37°. 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 Excel. See also: January | February | March.
