S
M
T
W
T
F
S
29
71°
43°
30
67°
45°
1
62°
49°
2
62°
44°
3
74°
41°
4
69°
41°
5
61°
45°
6
62°
42°
7
62°
43°
8
63°
44°
9
62°
42°
10
63°
40°
11
60°
38°
12
58°
40°
13
59°
40°
14
60°
41°
15
61°
43°
16
61°
43°
17
60°
42°
18
60°
46°
19
62°
42°
20
63°
42°
21
61°
43°
22
61°
53°
23
65°
45°
24
70°
41°
25
60°
40°
26
59°
39°
27
58°
39°
28
57°
40°
29
57°
44°
30
63°
38°
31
67°
35°
1
Hist. Avg.
62°
44°
2
Hist. Avg.
62°
44°
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 57° to 74°, with overnight lows between 35° and 53°. The average high for December is 62° with an average low of 42°. 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.
