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