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