S
M
T
W
T
F
S
29
44°
36°
30
45°
33°
1
44°
36°
2
46°
35°
3
47°
20°
4
50°
19°
5
33°
19°
6
32°
20°
7
33°
21°
8
34°
17°
9
34°
15°
10
29°
16°
11
28°
19°
12
30°
18°
13
31°
19°
14
32°
22°
15
35°
23°
16
38°
23°
17
38°
26°
18
39°
29°
19
39°
28°
20
38°
28°
21
37°
27°
22
36°
24°
23
36°
23°
24
35°
18°
25
36°
24°
26
34°
23°
27
34°
16°
28
33°
17°
29
32°
22°
30
33°
16°
31
30°
14°
1
Hist. Avg.
33°
22°
2
Hist. Avg.
33°
22°
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 28° to 50°, with overnight lows between 14° and 36°. The average high for December is 36° with an average low of 23°. 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.
