S
M
T
W
T
F
S
29
45°
31°
30
45°
30°
1
44°
29°
2
44°
29°
3
42°
28°
4
44°
28°
5
42°
27°
6
36°
25°
7
32°
19°
8
29°
16°
9
28°
20°
10
34°
23°
11
36°
26°
12
38°
25°
13
34°
24°
14
29°
19°
15
32°
20°
16
35°
21°
17
36°
22°
18
31°
17°
19
32°
15°
20
28°
10°
21
28°
11°
22
24°
15°
23
31°
20°
24
30°
18°
25
31°
8°
26
29°
7°
27
24°
5°
28
23°
5°
29
23°
9°
30
24°
16°
31
24°
10°
1
30°
6°
2
23°
5°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Wasco
Wasco's December 2026 forecast shows daily high temperatures ranging from 23° to 45°, with overnight lows between 5° and 31°. The average high for December is 33° with an average low of 18°. 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 Wasco. See also: January | February | March.
