S
M
T
W
T
F
S
29
40°
31°
30
41°
30°
1
37°
28°
2
37°
28°
3
38°
29°
4
34°
28°
5
32°
27°
6
33°
23°
7
29°
18°
8
29°
25°
9
34°
28°
10
36°
28°
11
37°
27°
12
37°
27°
13
39°
28°
14
40°
29°
15
40°
27°
16
38°
27°
17
38°
25°
18
26°
19°
19
30°
24°
20
35°
23°
21
38°
22°
22
35°
23°
23
36°
19°
24
35°
20°
25
32°
21°
26
34°
22°
27
36°
16°
28
37°
9°
29
27°
8°
30
21°
9°
31
24°
7°
1
28°
7°
2
20°
13°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Cedar Grove
Cedar Grove's December 2026 forecast shows daily high temperatures ranging from 20° to 41°, with overnight lows between 7° and 31°. The average high for December is 34° 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 Cedar Grove. See also: January | February | March.
