S
M
T
W
T
F
S
29
42°
26°
30
36°
26°
1
38°
28°
2
41°
27°
3
39°
27°
4
37°
26°
5
36°
23°
6
33°
24°
7
35°
21°
8
32°
16°
9
24°
14°
10
28°
20°
11
36°
23°
12
36°
22°
13
35°
24°
14
36°
23°
15
35°
22°
16
35°
22°
17
36°
21°
18
35°
21°
19
29°
20°
20
27°
18°
21
24°
14°
22
31°
5°
23
23°
4°
24
18°
-1°
25
19°
2°
26
15°
14°
27
26°
11°
28
33°
5°
29
31°
0°
30
32°
-2°
31
13°
-3°
1
12°
0°
2
13°
6°
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 12° to 42°, with overnight lows between -3° and 28°. The average high for December is 30° with an average low of 16°. 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.
