S
M
T
W
T
F
S
29
73°
40°
30
73°
39°
1
62°
40°
2
63°
42°
3
62°
49°
4
69°
50°
5
72°
48°
6
72°
47°
7
69°
46°
8
70°
40°
9
70°
36°
10
61°
37°
11
60°
36°
12
61°
37°
13
61°
37°
14
60°
36°
15
60°
35°
16
59°
40°
17
60°
47°
18
Hist. Avg.
64°
43°
19
Hist. Avg.
64°
43°
20
Hist. Avg.
64°
43°
21
Hist. Avg.
63°
43°
22
Hist. Avg.
63°
43°
23
Hist. Avg.
63°
43°
24
Hist. Avg.
63°
42°
25
Hist. Avg.
63°
42°
26
Hist. Avg.
63°
42°
27
Hist. Avg.
63°
42°
28
Hist. Avg.
62°
42°
29
Hist. Avg.
62°
42°
30
Hist. Avg.
62°
42°
31
Hist. Avg.
62°
42°
1
Hist. Avg.
62°
42°
2
Hist. Avg.
62°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Baton Rouge
Baton Rouge's December 2026 forecast shows daily high temperatures ranging from 59° to 73°, with overnight lows between 35° and 50°. The average high for December is 65° 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 Baton Rouge. See also: January | February | March.
