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