S
M
T
W
T
F
S
29
35°
18°
30
34°
26°
1
36°
20°
2
36°
21°
3
35°
22°
4
47°
18°
5
47°
20°
6
31°
19°
7
32°
21°
8
34°
16°
9
31°
14°
10
30°
14°
11
27°
15°
12
29°
15°
13
30°
17°
14
31°
17°
15
30°
23°
16
32°
24°
17
35°
18°
18
34°
24°
19
35°
24°
20
34°
20°
21
33°
20°
22
29°
17°
23
30°
10°
24
29°
18°
25
28°
19°
26
31°
21°
27
28°
21°
28
32°
19°
29
32°
17°
30
32°
9°
31
33°
5°
1
Hist. Avg.
31°
17°
2
Hist. Avg.
31°
17°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Ilion
Ilion's December 2026 forecast shows daily high temperatures ranging from 27° to 47°, with overnight lows between 5° and 26°. The average high for December is 33° with an average low of 18°. 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 Ilion. See also: January | February | March.
