S
M
T
W
T
F
S
29
63°
44°
30
60°
45°
1
62°
37°
2
47°
31°
3
47°
30°
4
53°
37°
5
55°
38°
6
47°
33°
7
46°
30°
8
44°
27°
9
44°
28°
10
43°
28°
11
48°
30°
12
51°
34°
13
51°
30°
14
47°
29°
15
46°
34°
16
45°
37°
17
46°
31°
18
48°
27°
19
44°
25°
20
43°
24°
21
42°
26°
22
44°
29°
23
46°
29°
24
43°
25°
25
42°
25°
26
42°
26°
27
43°
24°
28
43°
25°
29
44°
28°
30
43°
25°
31
43°
24°
1
41°
21°
2
40°
22°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Posey
Posey's December 2026 forecast shows daily high temperatures ranging from 40° to 63°, with overnight lows between 21° and 45°. The average high for December is 47° with an average low of 30°. 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 Posey. See also: January | February | March.
