S
M
T
W
T
F
S
29
55°
39°
30
58°
35°
1
50°
31°
2
57°
39°
3
57°
35°
4
56°
29°
5
46°
31°
6
47°
38°
7
45°
37°
8
48°
38°
9
53°
38°
10
57°
37°
11
45°
31°
12
44°
33°
13
54°
29°
14
42°
32°
15
49°
31°
16
45°
32°
17
52°
36°
18
56°
35°
19
51°
35°
20
49°
30°
21
42°
27°
22
54°
36°
23
55°
34°
24
40°
27°
25
40°
21°
26
41°
24°
27
42°
27°
28
43°
23°
29
43°
23°
30
44°
24°
31
44°
20°
1
42°
23°
2
40°
25°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Poughkeepsie
Poughkeepsie's December 2026 forecast shows daily high temperatures ranging from 40° to 58°, with overnight lows between 20° and 39°. The average high for December is 48° with an average low of 31°. 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 Poughkeepsie. See also: January | February | March.
