S
M
T
W
T
F
S
29
45°
34°
30
46°
35°
1
48°
34°
2
46°
34°
3
45°
33°
4
45°
33°
5
46°
34°
6
45°
34°
7
45°
38°
8
46°
34°
9
43°
39°
10
47°
41°
11
48°
39°
12
43°
37°
13
42°
41°
14
48°
42°
15
47°
40°
16
45°
39°
17
48°
40°
18
48°
38°
19
48°
35°
20
44°
34°
21
41°
35°
22
43°
35°
23
40°
36°
24
43°
41°
25
45°
41°
26
52°
33°
27
54°
31°
28
41°
31°
29
39°
32°
30
40°
32°
31
41°
36°
1
44°
39°
2
44°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Bothell
Bothell's December 2026 forecast shows daily high temperatures ranging from 39° to 54°, with overnight lows between 31° and 42°. 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 Bothell. See also: January | February | March.