S
M
T
W
T
F
S
30
17°
10°
1
14°
1°
2
13°
-3°
3
20°
-3°
4
13°
-12°
5
4°
-18°
6
18°
-6°
7
-2°
-23°
8
7°
-23°
9
8°
0°
10
11°
-1°
11
13°
-1°
12
15°
4°
13
15°
4°
14
14°
7°
15
10°
0°
16
20°
0°
17
27°
10°
18
30°
10°
19
42°
8°
20
9°
3°
21
15°
1°
22
2°
-16°
23
-4°
-21°
24
2°
-18°
25
4°
-16°
26
-2°
-27°
27
1°
-22°
28
7°
-20°
29
20°
-4°
30
23°
2°
31
2°
-6°
1
-3°
-28°
2
-2°
-16°
3
-8°
-15°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Mont-Valin
Mont-Valin's December 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for December is ° with an average low of °. 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 Mont-Valin. See also: January | February | March.
