S
M
T
W
T
F
S
29
43°
33°
30
43°
33°
1
44°
40°
2
48°
43°
3
49°
40°
4
47°
38°
5
47°
35°
6
49°
34°
7
47°
36°
8
48°
40°
9
49°
39°
10
48°
34°
11
48°
33°
12
47°
34°
13
49°
40°
14
46°
37°
15
50°
36°
16
47°
41°
17
48°
42°
18
49°
40°
19
50°
39°
20
48°
40°
21
47°
42°
22
48°
40°
23
49°
37°
24
47°
33°
25
45°
30°
26
46°
30°
27
40°
29°
28
39°
32°
29
41°
29°
30
41°
33°
31
42°
41°
1
47°
36°
2
48°
33°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Bellevue
Bellevue's December 2026 forecast shows daily high temperatures ranging from 39° to 50°, with overnight lows between 29° 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 Bellevue. See also: January | February | March.
