S
M
T
W
T
F
S
29
56°
27°
30
55°
25°
1
54°
23°
2
52°
22°
3
50°
19°
4
47°
23°
5
51°
24°
6
55°
22°
7
52°
21°
8
51°
20°
9
51°
21°
10
50°
17°
11
51°
20°
12
49°
14°
13
48°
14°
14
Hist. Avg.
45°
14°
15
Hist. Avg.
45°
14°
16
Hist. Avg.
45°
14°
17
Hist. Avg.
45°
14°
18
Hist. Avg.
44°
14°
19
Hist. Avg.
44°
14°
20
Hist. Avg.
44°
13°
21
Hist. Avg.
44°
13°
22
Hist. Avg.
44°
13°
23
Hist. Avg.
44°
13°
24
Hist. Avg.
44°
13°
25
Hist. Avg.
44°
13°
26
Hist. Avg.
44°
13°
27
Hist. Avg.
44°
13°
28
Hist. Avg.
44°
13°
29
Hist. Avg.
44°
13°
30
Hist. Avg.
44°
13°
31
Hist. Avg.
44°
13°
1
Hist. Avg.
44°
13°
2
Hist. Avg.
44°
13°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Lamar
Lamar's December 2026 forecast shows daily high temperatures ranging from 47° to 56°, with overnight lows between 14° and 27°. The average high for December is 51° with an average low of 21°. 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 Lamar. See also: January | February | March.
