S
M
T
W
T
F
S
29
46°
27°
30
47°
28°
1
46°
29°
2
45°
25°
3
44°
29°
4
45°
31°
5
46°
31°
6
46°
24°
7
47°
20°
8
38°
24°
9
37°
26°
10
39°
27°
11
42°
26°
12
39°
26°
13
38°
27°
14
41°
23°
15
42°
20°
16
39°
23°
17
37°
18°
18
36°
21°
19
36°
24°
20
40°
23°
21
40°
25°
22
39°
23°
23
38°
15°
24
34°
16°
25
31°
23°
26
37°
24°
27
39°
21°
28
38°
17°
29
33°
14°
30
30°
10°
31
34°
5°
1
36°
4°
2
22°
8°
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 22° to 47°, with overnight lows between 4° and 31°. The average high for December is 39° with an average low of 22°. 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.
