S
M
T
W
T
F
S
29
35°
21°
30
34°
20°
1
34°
23°
2
35°
28°
3
37°
28°
4
40°
29°
5
39°
32°
6
41°
31°
7
41°
31°
8
38°
27°
9
34°
26°
10
34°
26°
11
42°
26°
12
38°
26°
13
39°
19°
14
33°
16°
15
31°
19°
16
30°
20°
17
29°
22°
18
34°
25°
19
34°
29°
20
38°
29°
21
39°
28°
22
41°
29°
23
41°
29°
24
44°
24°
25
42°
18°
26
37°
15°
27
27°
18°
28
30°
27°
29
38°
26°
30
39°
29°
31
41°
31°
1
42°
26°
2
42°
18°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Lagrange
Lagrange's December 2026 forecast shows daily high temperatures ranging from 27° to 44°, with overnight lows between 15° and 32°. The average high for December is 37° with an average low of 25°. 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 Lagrange. See also: January | February | March.