S
M
T
W
T
F
S
29
50°
42°
30
58°
41°
1
57°
42°
2
57°
37°
3
47°
33°
4
52°
33°
5
55°
40°
6
53°
35°
7
45°
32°
8
44°
26°
9
44°
28°
10
45°
27°
11
42°
26°
12
43°
26°
13
43°
24°
14
44°
26°
15
45°
32°
16
47°
35°
17
46°
34°
18
51°
28°
19
49°
24°
20
44°
22°
21
42°
22°
22
43°
25°
23
46°
27°
24
43°
24°
25
42°
23°
26
41°
22°
27
42°
23°
28
41°
23°
29
42°
26°
30
46°
26°
31
47°
23°
1
43°
19°
2
41°
18°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Mentone
Mentone's December 2026 forecast shows daily high temperatures ranging from 41° to 58°, with overnight lows between 18° and 42°. The average high for December is 46° with an average low of 28°. 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 Mentone. See also: January | February | March.
