S
M
T
W
T
F
S
29
50°
23°
30
47°
20°
1
35°
22°
2
36°
25°
3
42°
27°
4
44°
32°
5
45°
33°
6
45°
32°
7
47°
30°
8
45°
27°
9
41°
27°
10
40°
21°
11
36°
17°
12
32°
20°
13
33°
17°
14
30°
18°
15
31°
19°
16
32°
15°
17
30°
16°
18
28°
23°
19
34°
25°
20
38°
28°
21
40°
28°
22
39°
21°
23
39°
16°
24
33°
14°
25
26°
18°
26
27°
22°
27
31°
22°
28
39°
16°
29
34°
17°
30
28°
17°
31
29°
23°
1
32°
22°
2
36°
20°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Gurnee
Gurnee's December 2026 forecast shows daily high temperatures ranging from 26° to 50°, with overnight lows between 14° and 33°. The average high for December is 36° 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 Gurnee. See also: January | February | March.
