S
M
T
W
T
F
S
29
43°
30°
30
43°
29°
1
40°
28°
2
40°
28°
3
39°
27°
4
41°
28°
5
39°
27°
6
36°
27°
7
33°
22°
8
31°
20°
9
31°
24°
10
37°
26°
11
39°
26°
12
38°
25°
13
37°
26°
14
29°
19°
15
28°
21°
16
34°
22°
17
33°
23°
18
34°
22°
19
33°
19°
20
33°
12°
21
30°
16°
22
25°
19°
23
31°
21°
24
31°
19°
25
33°
14°
26
29°
14°
27
26°
18°
28
27°
17°
29
30°
15°
30
27°
16°
31
30°
11°
1
31°
8°
2
20°
6°
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 20° to 43°, with overnight lows between 6° and 30°. The average high for December is 33° with an average low of 21°. 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.
