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