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