S
M
T
W
T
F
S
29
66°
47°
30
67°
44°
1
71°
45°
2
70°
43°
3
68°
36°
4
64°
29°
5
57°
27°
6
52°
25°
7
52°
27°
8
53°
28°
9
51°
28°
10
52°
26°
11
48°
26°
12
50°
30°
13
52°
27°
14
52°
25°
15
50°
25°
16
50°
26°
17
51°
26°
18
51°
31°
19
56°
37°
20
60°
37°
21
64°
41°
22
63°
42°
23
64°
43°
24
64°
41°
25
66°
40°
26
66°
39°
27
63°
39°
28
57°
41°
29
63°
43°
30
66°
40°
31
66°
35°
1
65°
32°
2
58°
34°
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 48° to 71°, with overnight lows between 25° and 47°. The average high for December is 59° with an average low of 34°. 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.
