S
M
T
W
T
F
S
29
55°
39°
30
56°
38°
1
55°
39°
2
56°
36°
3
44°
34°
4
49°
31°
5
55°
37°
6
54°
35°
7
43°
29°
8
40°
24°
9
39°
23°
10
39°
27°
11
40°
33°
12
42°
29°
13
44°
29°
14
40°
22°
15
39°
27°
16
40°
31°
17
44°
32°
18
46°
29°
19
45°
22°
20
41°
21°
21
37°
20°
22
36°
22°
23
38°
29°
24
39°
25°
25
39°
20°
26
37°
15°
27
35°
19°
28
34°
17°
29
35°
16°
30
35°
25°
31
42°
21°
1
43°
17°
2
35°
14°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Rosemount
Rosemount's December 2026 forecast shows daily high temperatures ranging from 34° to 56°, with overnight lows between 14° and 39°. The average high for December is 43° with an average low of 26°. 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 Rosemount. See also: January | February | March.
