S
M
T
W
T
F
S
29
66°
42°
30
65°
41°
1
64°
40°
2
64°
42°
3
63°
39°
4
57°
34°
5
57°
38°
6
58°
41°
7
57°
36°
8
57°
38°
9
55°
41°
10
53°
33°
11
54°
32°
12
52°
33°
13
54°
32°
14
53°
31°
15
54°
32°
16
53°
33°
17
55°
33°
18
57°
34°
19
57°
38°
20
58°
35°
21
59°
36°
22
59°
36°
23
58°
32°
24
54°
31°
25
53°
30°
26
53°
30°
27
55°
32°
28
56°
33°
29
60°
35°
30
60°
34°
31
61°
40°
1
59°
41°
2
60°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Allendale
Allendale's December 2026 forecast shows daily high temperatures ranging from 52° to 66°, with overnight lows between 30° and 43°. The average high for December is 57° with an average low of 36°. 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 Allendale. See also: January | February | March.
