S
M
T
W
T
F
S
29
44°
31°
30
48°
33°
1
49°
32°
2
47°
33°
3
49°
31°
4
47°
30°
5
47°
30°
6
45°
31°
7
48°
29°
8
42°
27°
9
38°
28°
10
39°
28°
11
38°
27°
12
39°
26°
13
40°
23°
14
40°
15°
15
35°
16°
16
31°
19°
17
33°
18°
18
32°
25°
19
40°
24°
20
43°
20°
21
38°
16°
22
34°
18°
23
33°
14°
24
33°
21°
25
35°
16°
26
41°
12°
27
32°
14°
28
27°
13°
29
32°
13°
30
30°
17°
31
32°
22°
1
43°
18°
2
42°
12°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Saco
Saco's December 2026 forecast shows daily high temperatures ranging from 27° to 49°, with overnight lows between 12° and 33°. The average high for December is 39° with an average low of 22°. 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 Saco. See also: January | February | March.
