S
M
T
W
T
F
S
29
42°
31°
30
42°
30°
1
36°
29°
2
38°
29°
3
39°
25°
4
31°
23°
5
30°
22°
6
30°
17°
7
29°
16°
8
29°
24°
9
33°
27°
10
33°
27°
11
36°
26°
12
34°
25°
13
38°
26°
14
39°
27°
15
40°
25°
16
36°
25°
17
34°
24°
18
28°
18°
19
30°
23°
20
37°
22°
21
39°
21°
22
35°
22°
23
36°
18°
24
35°
20°
25
33°
21°
26
35°
21°
27
36°
18°
28
39°
11°
29
28°
8°
30
23°
14°
31
23°
8°
1
30°
7°
2
22°
13°
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 22° to 42°, with overnight lows between 7° and 31°. The average high for December is 34° 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 Wasco. See also: January | February | March.
