S
M
T
W
T
F
S
29
44°
34°
30
44°
32°
1
45°
34°
2
45°
26°
3
46°
20°
4
48°
18°
5
33°
18°
6
34°
20°
7
34°
18°
8
35°
15°
9
33°
14°
10
29°
15°
11
28°
17°
12
30°
17°
13
32°
18°
14
33°
21°
15
37°
23°
16
39°
23°
17
39°
28°
18
40°
29°
19
38°
28°
20
36°
25°
21
36°
24°
22
34°
27°
23
36°
18°
24
37°
17°
25
34°
24°
26
33°
21°
27
34°
15°
28
33°
16°
29
33°
21°
30
34°
13°
31
31°
20°
1
33°
19°
2
Hist. Avg.
33°
18°
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 28° to 48°, with overnight lows between 13° and 34°. The average high for December is 36° 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 Lafayette. See also: January | February | March.
