S
M
T
W
T
F
S
29
50°
41°
30
48°
41°
1
48°
40°
2
49°
42°
3
50°
41°
4
49°
40°
5
49°
41°
6
50°
40°
7
50°
41°
8
48°
41°
9
52°
37°
10
49°
40°
11
44°
32°
12
43°
35°
13
47°
40°
14
46°
41°
15
49°
43°
16
51°
38°
17
50°
35°
18
49°
32°
19
44°
31°
20
43°
32°
21
42°
31°
22
44°
28°
23
42°
31°
24
41°
35°
25
45°
39°
26
46°
36°
27
46°
32°
28
47°
31°
29
44°
30°
30
42°
30°
31
42°
29°
1
43°
29°
2
41°
30°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Mount Baker
Mount Baker's December 2026 forecast shows daily high temperatures ranging from 41° to 52°, with overnight lows between 28° and 43°. The average high for December is 46° with an average low of 36°. 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 Mount Baker. See also: January | February | March.
