S
M
T
W
T
F
S
29
47°
41°
30
48°
40°
1
46°
39°
2
45°
39°
3
45°
40°
4
46°
40°
5
47°
39°
6
46°
36°
7
45°
33°
8
44°
32°
9
43°
32°
10
44°
40°
11
45°
39°
12
44°
32°
13
43°
31°
14
41°
30°
15
Hist. Avg.
47°
37°
16
Hist. Avg.
47°
37°
17
Hist. Avg.
46°
37°
18
Hist. Avg.
46°
37°
19
Hist. Avg.
46°
37°
20
Hist. Avg.
46°
37°
21
Hist. Avg.
46°
37°
22
Hist. Avg.
46°
37°
23
Hist. Avg.
46°
37°
24
Hist. Avg.
46°
37°
25
Hist. Avg.
46°
37°
26
Hist. Avg.
46°
37°
27
Hist. Avg.
46°
37°
28
Hist. Avg.
46°
37°
29
Hist. Avg.
46°
37°
30
Hist. Avg.
47°
37°
31
Hist. Avg.
47°
37°
1
Hist. Avg.
47°
37°
2
Hist. Avg.
47°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Mount Baker
Mount Baker's December 2026 forecast shows daily high temperatures ranging from 41° to 48°, with overnight lows between 30° and 41°. The average high for December is 45° 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.
