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