S
M
T
W
T
F
S
29
59°
43°
30
60°
41°
1
59°
34°
2
56°
30°
3
48°
34°
4
49°
38°
5
54°
34°
6
50°
32°
7
47°
39°
8
54°
35°
9
55°
31°
10
47°
27°
11
47°
24°
12
41°
25°
13
40°
26°
14
43°
21°
15
41°
23°
16
38°
24°
17
40°
22°
18
46°
21°
19
42°
24°
20
39°
35°
21
47°
34°
22
46°
33°
23
48°
34°
24
45°
35°
25
53°
33°
26
52°
31°
27
Hist. Avg.
42°
27°
28
Hist. Avg.
41°
27°
29
Hist. Avg.
41°
27°
30
Hist. Avg.
41°
27°
31
Hist. Avg.
41°
26°
1
Hist. Avg.
41°
27°
2
Hist. Avg.
41°
27°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Rumson
Rumson's December 2026 forecast shows daily high temperatures ranging from 38° to 60°, with overnight lows between 21° and 43°. The average high for December is 48° with an average low of 31°. 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 Rumson. See also: January | February | March.
