S
M
T
W
T
F
S
29
39°
13°
30
34°
11°
1
33°
4°
2
36°
12°
3
35°
12°
4
32°
9°
5
37°
8°
6
38°
2°
7
35°
8°
8
41°
10°
9
41°
2°
10
32°
0°
11
32°
-4°
12
29°
-3°
13
30°
-2°
14
35°
-1°
15
32°
7°
16
41°
6°
17
43°
6°
18
34°
5°
19
34°
7°
20
32°
3°
21
33°
5°
22
35°
-2°
23
33°
-8°
24
26°
-7°
25
27°
-4°
26
35°
5°
27
38°
4°
28
37°
3°
29
32°
8°
30
35°
6°
31
38°
-3°
1
35°
-9°
2
28°
-8°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Ames
Ames's December 2026 forecast shows daily high temperatures ranging from 26° to 43°, with overnight lows between -9° and 13°. The average high for December is 34° with an average low of 3°. 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 Ames. See also: January | February | March.
