S
M
T
W
T
F
S
29
56°
38°
30
56°
32°
1
55°
27°
2
41°
24°
3
46°
33°
4
54°
36°
5
50°
35°
6
41°
30°
7
41°
24°
8
38°
22°
9
40°
25°
10
44°
29°
11
45°
27°
12
51°
28°
13
47°
29°
14
42°
25°
15
44°
26°
16
44°
27°
17
41°
22°
18
40°
20°
19
39°
18°
20
37°
16°
21
35°
22°
22
38°
25°
23
41°
21°
24
39°
19°
25
37°
18°
26
37°
23°
27
39°
20°
28
38°
18°
29
37°
22°
30
37°
20°
31
38°
17°
1
37°
12°
2
35°
17°
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 35° to 56°, with overnight lows between 12° and 38°. The average high for December is 42° with an average low of 24°. 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.
