S
M
T
W
T
F
S
29
47°
31°
30
48°
31°
1
47°
30°
2
47°
29°
3
45°
29°
4
47°
28°
5
46°
28°
6
39°
26°
7
36°
20°
8
32°
17°
9
32°
21°
10
38°
24°
11
40°
27°
12
42°
26°
13
38°
26°
14
33°
20°
15
36°
21°
16
39°
23°
17
40°
24°
18
35°
19°
19
36°
16°
20
32°
12°
21
32°
13°
22
29°
17°
23
36°
22°
24
35°
19°
25
35°
10°
26
33°
9°
27
28°
7°
28
28°
7°
29
27°
10°
30
27°
17°
31
28°
12°
1
34°
8°
2
27°
7°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Roselle
Roselle's December 2026 forecast shows daily high temperatures ranging from 27° to 48°, with overnight lows between 7° and 31°. The average high for December is 36° with an average low of 20°. 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 Roselle. See also: January | February | March.
