S
M
T
W
T
F
S
29
55°
42°
30
60°
39°
1
63°
38°
2
59°
40°
3
56°
28°
4
66°
27°
5
52°
29°
6
51°
28°
7
54°
32°
8
52°
28°
9
53°
27°
10
52°
26°
11
50°
25°
12
48°
26°
13
49°
27°
14
51°
27°
15
52°
28°
16
53°
33°
17
53°
36°
18
51°
35°
19
52°
31°
20
51°
29°
21
51°
28°
22
50°
30°
23
52°
36°
24
51°
28°
25
51°
24°
26
47°
25°
27
48°
25°
28
49°
26°
29
48°
29°
30
48°
30°
31
47°
23°
1
Hist. Avg.
54°
29°
2
Hist. Avg.
54°
29°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Buffalo
Buffalo's December 2026 forecast shows daily high temperatures ranging from 47° to 66°, with overnight lows between 23° and 42°. The average high for December is 52° with an average low of 30°. 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 Buffalo. See also: January | February | March.
