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