S
M
T
W
T
F
S
29
47°
37°
30
56°
36°
1
52°
38°
2
53°
36°
3
51°
30°
4
44°
27°
5
54°
32°
6
54°
33°
7
43°
30°
8
40°
25°
9
40°
23°
10
41°
23°
11
38°
24°
12
39°
24°
13
38°
22°
14
38°
17°
15
38°
24°
16
40°
28°
17
41°
30°
18
45°
31°
19
48°
20°
20
45°
16°
21
40°
16°
22
34°
17°
23
38°
24°
24
37°
18°
25
39°
18°
26
35°
16°
27
36°
15°
28
35°
13°
29
36°
19°
30
39°
26°
31
47°
19°
1
50°
15°
2
36°
12°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Sparta
Sparta's December 2026 forecast shows daily high temperatures ranging from 34° to 56°, with overnight lows between 12° and 38°. The average high for December is 42° 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 Sparta. See also: January | February | March.
