S
M
T
W
T
F
S
29
45°
37°
30
46°
34°
1
43°
32°
2
41°
33°
3
43°
33°
4
42°
34°
5
41°
37°
6
44°
43°
7
48°
47°
8
56°
42°
9
57°
39°
10
45°
36°
11
44°
37°
12
44°
34°
13
45°
35°
14
42°
32°
15
44°
30°
16
42°
30°
17
38°
29°
18
38°
28°
19
39°
27°
20
39°
38°
21
46°
35°
22
49°
32°
23
43°
38°
24
43°
39°
25
51°
36°
26
47°
29°
27
43°
31°
28
44°
27°
29
42°
28°
30
35°
23°
31
49°
22°
1
36°
26°
2
38°
28°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Elmhurst
Elmhurst's December 2026 forecast shows daily high temperatures ranging from 35° to 57°, with overnight lows between 22° and 47°. The average high for December is 44° with an average low of 33°. 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 Elmhurst. See also: January | February | March.
