S
M
T
W
T
F
S
29
50°
25°
30
43°
22°
1
42°
23°
2
42°
30°
3
46°
31°
4
54°
27°
5
51°
26°
6
45°
27°
7
46°
28°
8
48°
29°
9
49°
24°
10
48°
29°
11
49°
31°
12
Hist. Avg.
44°
26°
13
Hist. Avg.
44°
25°
14
Hist. Avg.
43°
25°
15
Hist. Avg.
43°
25°
16
Hist. Avg.
43°
24°
17
Hist. Avg.
42°
24°
18
Hist. Avg.
42°
24°
19
Hist. Avg.
42°
24°
20
Hist. Avg.
42°
23°
21
Hist. Avg.
41°
23°
22
Hist. Avg.
41°
23°
23
Hist. Avg.
41°
22°
24
Hist. Avg.
41°
22°
25
Hist. Avg.
40°
22°
26
Hist. Avg.
40°
22°
27
Hist. Avg.
40°
21°
28
Hist. Avg.
40°
21°
29
Hist. Avg.
40°
21°
30
Hist. Avg.
39°
21°
31
Hist. Avg.
39°
20°
1
Hist. Avg.
39°
20°
2
Hist. Avg.
39°
20°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Bellingham
Bellingham's December 2026 forecast shows daily high temperatures ranging from 42° to 54°, with overnight lows between 22° and 31°. The average high for December is 47° with an average low of 27°. 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 Bellingham. See also: January | February | March.
