S
M
T
W
T
F
S
29
50°
34°
30
56°
33°
1
53°
35°
2
55°
33°
3
49°
28°
4
47°
24°
5
55°
31°
6
54°
30°
7
42°
27°
8
41°
22°
9
41°
20°
10
42°
19°
11
38°
21°
12
39°
20°
13
39°
19°
14
38°
17°
15
39°
22°
16
41°
27°
17
42°
30°
18
47°
28°
19
49°
17°
20
44°
15°
21
40°
15°
22
34°
16°
23
39°
22°
24
38°
17°
25
38°
16°
26
36°
14°
27
36°
15°
28
37°
13°
29
36°
18°
30
39°
25°
31
46°
18°
1
48°
14°
2
36°
11°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Lansing
Lansing's December 2026 forecast shows daily high temperatures ranging from 34° to 56°, with overnight lows between 11° and 35°. The average high for December is 43° with an average low of 22°. 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 Lansing. See also: January | February | March.
