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