S
M
T
W
T
F
S
29
38°
27°
30
37°
26°
1
36°
20°
2
38°
19°
3
34°
21°
4
32°
29°
5
37°
31°
6
42°
35°
7
46°
28°
8
47°
26°
9
41°
20°
10
33°
21°
11
34°
22°
12
32°
20°
13
33°
23°
14
31°
25°
15
33°
23°
16
34°
26°
17
34°
27°
18
36°
27°
19
36°
29°
20
43°
25°
21
45°
21°
22
37°
23°
23
35°
26°
24
39°
25°
25
39°
24°
26
36°
16°
27
33°
12°
28
31°
13°
29
25°
7°
30
27°
6°
31
25°
9°
1
20°
13°
2
26°
14°
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 20° to 47°, with overnight lows between 6° and 35°. The average high for December is 35° with an average low of 22°. 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.
