S
M
T
W
T
F
S
29
57°
27°
30
52°
25°
1
45°
23°
2
42°
25°
3
45°
25°
4
51°
29°
5
55°
38°
6
58°
42°
7
61°
37°
8
60°
35°
9
57°
32°
10
46°
33°
11
50°
25°
12
44°
24°
13
41°
25°
14
44°
23°
15
40°
24°
16
41°
21°
17
40°
20°
18
39°
25°
19
40°
23°
20
41°
28°
21
45°
36°
22
48°
36°
23
53°
34°
24
48°
29°
25
45°
24°
26
41°
21°
27
39°
28°
28
44°
27°
29
50°
21°
30
40°
18°
31
35°
19°
1
37°
25°
2
45°
22°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Buchanan
Buchanan's December 2026 forecast shows daily high temperatures ranging from 35° to 61°, with overnight lows between 18° and 42°. The average high for December is 46° 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 Buchanan. See also: January | February | March.
