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