S
M
T
W
T
F
S
29
38°
22°
30
30°
18°
1
24°
17°
2
33°
22°
3
37°
22°
4
35°
21°
5
33°
20°
6
30°
14°
7
20°
15°
8
32°
20°
9
35°
20°
10
35°
19°
11
34°
19°
12
34°
18°
13
35°
19°
14
26°
16°
15
30°
17°
16
28°
12°
17
30°
9°
18
27°
2°
19
20°
-2°
20
16°
7°
21
22°
14°
22
29°
10°
23
29°
8°
24
24°
12°
25
26°
13°
26
28°
13°
27
29°
7°
28
27°
-2°
29
20°
0°
30
15°
-3°
31
14°
-6°
1
14°
4°
2
15°
11°
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 14° to 38°, with overnight lows between -6° and 22°. The average high for December is 27° with an average low of 12°. 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.
