S
M
T
W
T
F
S
29
65°
41°
30
65°
37°
1
64°
42°
2
64°
44°
3
62°
43°
4
59°
44°
5
58°
41°
6
58°
39°
7
59°
42°
8
58°
41°
9
60°
42°
10
58°
38°
11
56°
41°
12
58°
41°
13
60°
43°
14
60°
38°
15
59°
37°
16
57°
39°
17
58°
37°
18
53°
36°
19
54°
33°
20
52°
32°
21
53°
32°
22
53°
36°
23
54°
32°
24
53°
32°
25
52°
31°
26
52°
31°
27
51°
30°
28
53°
33°
29
54°
35°
30
55°
35°
31
59°
36°
1
56°
32°
2
53°
33°
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 51° to 65°, with overnight lows between 30° and 44°. The average high for December is 57° with an average low of 37°. 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.
