S
M
T
W
T
F
S
29
38°
27°
30
45°
31°
1
41°
36°
2
41°
36°
3
43°
35°
4
42°
36°
5
44°
35°
6
47°
35°
7
43°
34°
8
39°
33°
9
41°
29°
10
39°
27°
11
48°
26°
12
45°
22°
13
41°
17°
14
34°
20°
15
33°
18°
16
35°
26°
17
36°
30°
18
40°
29°
19
42°
29°
20
44°
30°
21
43°
29°
22
41°
31°
23
47°
29°
24
47°
17°
25
43°
14°
26
31°
16°
27
31°
24°
28
34°
28°
29
43°
29°
30
44°
33°
31
46°
33°
1
47°
21°
2
48°
16°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Quincy
Quincy's December 2026 forecast shows daily high temperatures ranging from 31° to 48°, with overnight lows between 14° and 36°. The average high for December is 41° 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 Quincy. See also: January | February | March.
