S
M
T
W
T
F
S
29
36°
29°
30
42°
30°
1
39°
32°
2
39°
32°
3
43°
31°
4
41°
32°
5
42°
32°
6
46°
31°
7
43°
30°
8
39°
30°
9
40°
29°
10
39°
29°
11
43°
22°
12
37°
17°
13
31°
12°
14
30°
21°
15
33°
12°
16
34°
26°
17
37°
27°
18
37°
26°
19
36°
26°
20
37°
25°
21
38°
26°
22
37°
26°
23
40°
17°
24
39°
12°
25
34°
14°
26
27°
19°
27
32°
23°
28
33°
23°
29
40°
25°
30
39°
27°
31
42°
28°
1
41°
10°
2
41°
9°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Des Moines
Des Moines's December 2026 forecast shows daily high temperatures ranging from 27° to 46°, with overnight lows between 9° and 32°. The average high for December is 38° with an average low of 24°. 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 Des Moines. See also: January | February | March.
