S
M
T
W
T
F
S
29
63°
44°
30
63°
41°
1
62°
46°
2
62°
48°
3
61°
47°
4
58°
47°
5
57°
45°
6
57°
43°
7
58°
46°
8
57°
44°
9
59°
45°
10
58°
42°
11
55°
45°
12
57°
45°
13
59°
47°
14
59°
42°
15
58°
41°
16
57°
43°
17
58°
41°
18
53°
40°
19
53°
37°
20
52°
36°
21
52°
36°
22
53°
39°
23
53°
36°
24
54°
36°
25
51°
35°
26
52°
35°
27
51°
34°
28
53°
37°
29
54°
39°
30
55°
38°
31
59°
39°
1
57°
36°
2
Hist. Avg.
58°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Lafayette
Lafayette's December 2026 forecast shows daily high temperatures ranging from 51° to 63°, with overnight lows between 34° and 48°. The average high for December is 56° with an average low of 41°. 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 Lafayette. See also: January | February | March.
