S
M
T
W
T
F
S
29
58°
40°
30
59°
30°
1
55°
29°
2
43°
28°
3
43°
27°
4
41°
38°
5
52°
36°
6
54°
28°
7
45°
27°
8
42°
31°
9
44°
28°
10
42°
27°
11
41°
26°
12
40°
26°
13
42°
25°
14
40°
24°
15
37°
21°
16
37°
24°
17
Hist. Avg.
44°
30°
18
Hist. Avg.
43°
29°
19
Hist. Avg.
43°
29°
20
Hist. Avg.
43°
29°
21
Hist. Avg.
43°
29°
22
Hist. Avg.
42°
28°
23
Hist. Avg.
42°
28°
24
Hist. Avg.
42°
28°
25
Hist. Avg.
42°
28°
26
Hist. Avg.
42°
28°
27
Hist. Avg.
41°
28°
28
Hist. Avg.
41°
27°
29
Hist. Avg.
41°
27°
30
Hist. Avg.
41°
27°
31
Hist. Avg.
41°
27°
1
Hist. Avg.
41°
27°
2
Hist. Avg.
40°
26°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Roselle
Roselle's December 2026 forecast shows daily high temperatures ranging from 37° to 59°, with overnight lows between 21° and 40°. The average high for December is 45° with an average low of 29°. 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.