S
M
T
W
T
F
S
29
36°
14°
30
37°
10°
1
30°
5°
2
27°
7°
3
27°
12°
4
31°
14°
5
35°
12°
6
34°
10°
7
31°
9°
8
30°
6°
9
29°
8°
10
31°
9°
11
30°
16°
12
33°
18°
13
37°
16°
14
38°
16°
15
36°
18°
16
35°
19°
17
38°
16°
18
39°
12°
19
35°
17°
20
36°
17°
21
37°
11°
22
37°
7°
23
31°
14°
24
30°
17°
25
37°
18°
26
38°
17°
27
37°
17°
28
38°
14°
29
35°
11°
30
29°
5°
31
30°
9°
1
Hist. Avg.
32°
9°
2
Hist. Avg.
32°
9°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Lander
Lander's December 2026 forecast shows daily high temperatures ranging from 27° to 39°, with overnight lows between 5° and 19°. The average high for December is 34° with an average low of 13°. 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 Lander. See also: January | February | March.
