S
M
T
W
T
F
S
29
46°
28°
30
40°
21°
1
31°
14°
2
30°
15°
3
34°
26°
4
37°
26°
5
33°
25°
6
33°
20°
7
30°
17°
8
29°
21°
9
36°
22°
10
41°
24°
11
40°
24°
12
42°
23°
13
42°
24°
14
36°
21°
15
35°
21°
16
36°
19°
17
35°
13°
18
33°
10°
19
32°
6°
20
26°
5°
21
23°
18°
22
35°
19°
23
35°
10°
24
34°
5°
25
30°
19°
26
32°
20°
27
36°
19°
28
36°
18°
29
35°
15°
30
35°
11°
31
32°
3°
1
27°
2°
2
23°
14°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Creston
Creston's December 2026 forecast shows daily high temperatures ranging from 23° to 46°, with overnight lows between 2° and 28°. The average high for December is 34° 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 Creston. See also: January | February | March.