S
M
T
W
T
F
S
29
49°
29°
30
36°
24°
1
34°
21°
2
37°
29°
3
47°
29°
4
45°
28°
5
38°
28°
6
36°
25°
7
32°
22°
8
35°
28°
9
45°
28°
10
46°
27°
11
46°
27°
12
45°
26°
13
46°
27°
14
42°
23°
15
43°
26°
16
42°
19°
17
41°
17°
18
36°
10°
19
34°
7°
20
26°
13°
21
29°
21°
22
39°
20°
23
39°
16°
24
37°
19°
25
37°
22°
26
39°
22°
27
43°
19°
28
40°
12°
29
37°
15°
30
35°
8°
31
31°
6°
1
24°
15°
2
29°
22°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Ainsworth
Ainsworth's December 2026 forecast shows daily high temperatures ranging from 24° to 49°, with overnight lows between 6° and 29°. The average high for December is 38° with an average low of 21°. 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 Ainsworth. See also: January | February | March.
