S
M
T
W
T
F
S
29
55°
38°
30
55°
34°
1
51°
27°
2
47°
28°
3
43°
33°
4
47°
31°
5
43°
29°
6
46°
34°
7
48°
30°
8
48°
25°
9
46°
29°
10
41°
23°
11
41°
22°
12
33°
21°
13
34°
18°
14
33°
16°
15
31°
17°
16
31°
22°
17
32°
12°
18
35°
13°
19
28°
17°
20
30°
24°
21
38°
29°
22
37°
28°
23
40°
31°
24
43°
28°
25
45°
27°
26
42°
26°
27
33°
15°
28
35°
28°
29
41°
27°
30
Hist. Avg.
34°
19°
31
Hist. Avg.
34°
18°
1
Hist. Avg.
33°
18°
2
Hist. Avg.
33°
18°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Quincy
Quincy's December 2026 forecast shows daily high temperatures ranging from 28° to 55°, with overnight lows between 12° and 38°. The average high for December is 40° with an average low of 25°. 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.
