S
M
T
W
T
F
S
29
49°
41°
30
53°
41°
1
52°
42°
2
53°
40°
3
54°
37°
4
46°
33°
5
51°
38°
6
53°
38°
7
46°
34°
8
41°
32°
9
41°
29°
10
40°
28°
11
38°
34°
12
40°
34°
13
42°
33°
14
36°
24°
15
38°
27°
16
38°
31°
17
40°
33°
18
38°
34°
19
45°
29°
20
41°
22°
21
37°
22°
22
35°
24°
23
33°
28°
24
35°
26°
25
41°
28°
26
37°
22°
27
36°
18°
28
33°
17°
29
32°
15°
30
34°
31°
31
44°
26°
1
49°
21°
2
35°
19°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in State Line
State Line's December 2026 forecast shows daily high temperatures ranging from 32° to 54°, with overnight lows between 15° and 42°. The average high for December is 42° with an average low of 29°. 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 State Line. See also: January | February | March.
