S
M
T
W
T
F
S
29
43°
24°
30
47°
23°
1
48°
21°
2
47°
23°
3
45°
24°
4
49°
24°
5
48°
23°
6
49°
22°
7
46°
21°
8
43°
21°
9
45°
20°
10
44°
21°
11
43°
20°
12
43°
20°
13
42°
19°
14
40°
20°
15
40°
19°
16
43°
20°
17
43°
20°
18
42°
21°
19
42°
15°
20
43°
13°
21
34°
18°
22
39°
18°
23
42°
13°
24
39°
6°
25
31°
6°
26
29°
3°
27
28°
7°
28
31°
8°
29
32°
5°
30
31°
6°
31
30°
12°
1
30°
5°
2
37°
18°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Ellsworth
Ellsworth's December 2026 forecast shows daily high temperatures ranging from 28° to 49°, with overnight lows between 3° and 24°. The average high for December is 40° with an average low of 17°. 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 Ellsworth. See also: January | February | March.