S
M
T
W
T
F
S
30
45°
28°
1
45°
28°
2
46°
28°
3
41°
27°
4
46°
27°
5
36°
27°
6
39°
27°
7
43°
28°
8
36°
27°
9
36°
21°
10
46°
32°
11
45°
34°
12
37°
23°
13
45°
23°
14
37°
19°
15
28°
19°
16
39°
19°
17
55°
27°
18
59°
27°
19
59°
36°
20
43°
27°
21
52°
30°
22
41°
23°
23
45°
36°
24
52°
34°
25
54°
32°
26
39°
30°
27
41°
28°
28
45°
30°
29
64°
32°
30
36°
27°
31
37°
25°
1
39°
21°
2
34°
23°
3
34°
21°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Algonquin
Algonquin'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 Algonquin. See also: January | February | March.
