S
M
T
W
T
F
S
29
42°
29°
30
43°
28°
1
40°
27°
2
40°
27°
3
39°
26°
4
42°
27°
5
40°
26°
6
35°
25°
7
33°
18°
8
28°
17°
9
30°
20°
10
37°
24°
11
37°
24°
12
39°
23°
13
35°
24°
14
29°
21°
15
32°
19°
16
34°
21°
17
35°
22°
18
34°
20°
19
33°
17°
20
31°
10°
21
31°
14°
22
24°
16°
23
33°
20°
24
31°
16°
25
34°
9°
26
30°
11°
27
24°
14°
28
27°
10°
29
29°
12°
30
25°
15°
31
27°
9°
1
31°
4°
2
21°
3°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Montello
Montello's December 2026 forecast shows daily high temperatures ranging from 21° to 43°, with overnight lows between 3° and 29°. The average high for December is 33° with an average low of 19°. 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 Montello. See also: January | February | March.
