S
M
T
W
T
F
S
29
40°
30°
30
44°
29°
1
45°
31°
2
44°
32°
3
45°
27°
4
42°
32°
5
44°
33°
6
45°
33°
7
46°
28°
8
46°
25°
9
38°
26°
10
38°
26°
11
37°
30°
12
39°
29°
13
38°
29°
14
38°
31°
15
43°
26°
16
44°
22°
17
35°
26°
18
34°
22°
19
34°
23°
20
35°
28°
21
37°
28°
22
38°
27°
23
40°
27°
24
39°
26°
25
35°
21°
26
35°
26°
27
34°
27°
28
38°
25°
29
36°
20°
30
35°
23°
31
34°
11°
1
35°
9°
2
30°
10°
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 30° to 46°, with overnight lows between 9° and 33°. The average high for December is 39° with an average low of 26°. 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.
