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