S
M
T
W
T
F
S
29
38°
29°
30
39°
27°
1
39°
29°
2
40°
23°
3
38°
22°
4
35°
28°
5
37°
33°
6
42°
38°
7
48°
31°
8
51°
28°
9
48°
26°
10
35°
24°
11
36°
23°
12
37°
25°
13
35°
26°
14
36°
24°
15
34°
21°
16
32°
23°
17
32°
25°
18
34°
27°
19
34°
30°
20
40°
30°
21
47°
23°
22
46°
25°
23
36°
31°
24
44°
29°
25
46°
27°
26
41°
27°
27
37°
17°
28
38°
16°
29
29°
13°
30
31°
10°
31
30°
11°
1
23°
14°
2
28°
19°
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 23° to 51°, with overnight lows between 10° and 38°. The average high for December is 38° with an average low of 24°. 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.
