S
M
T
W
T
F
S
27
43°
24°
28
43°
25°
29
44°
28°
30
43°
25°
31
43°
24°
1
41°
21°
2
40°
22°
3
40°
30°
4
41°
37°
5
47°
39°
6
55°
30°
7
56°
23°
8
42°
24°
9
41°
25°
10
41°
23°
11
44°
21°
12
41°
19°
13
38°
21°
14
39°
20°
15
40°
22°
16
40°
25°
17
43°
22°
18
39°
18°
19
37°
18°
20
36°
21°
21
38°
30°
22
41°
37°
23
46°
37°
24
48°
30°
25
48°
26°
26
47°
29°
27
47°
29°
28
46°
25°
29
44°
29°
30
41°
24°
31
40°
19°
1
52°
24°
2
Hist. Avg.
50°
31°
3
Hist. Avg.
50°
31°
4
Hist. Avg.
50°
32°
5
Hist. Avg.
50°
32°
6
Hist. Avg.
51°
32°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Posey
Posey's January 2027 forecast shows daily high temperatures ranging from 36° to 56°, with overnight lows between 18° and 39°. The average high for January is 43° with an average low of 26°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how January weather will actually feel in Posey. See also: February | March | April.