S
M
T
W
T
F
S
29
39°
32°
30
39°
31°
1
37°
25°
2
39°
24°
3
35°
26°
4
33°
33°
5
38°
36°
6
43°
40°
7
47°
32°
8
48°
30°
9
42°
26°
10
35°
25°
11
34°
26°
12
34°
25°
13
35°
27°
14
32°
29°
15
34°
28°
16
36°
31°
17
35°
31°
18
37°
30°
19
37°
33°
20
44°
30°
21
46°
25°
22
38°
27°
23
36°
30°
24
40°
29°
25
40°
28°
26
37°
20°
27
34°
16°
28
32°
17°
29
26°
11°
30
28°
10°
31
26°
13°
1
21°
17°
2
26°
18°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in River North
River North's December 2026 forecast shows daily high temperatures ranging from 21° to 48°, with overnight lows between 10° and 40°. The average high for December is 36° with an average low of 26°. 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 River North. See also: January | February | March.
