S
M
T
W
T
F
S
29
44°
31°
30
44°
30°
1
40°
30°
2
40°
29°
3
43°
31°
4
43°
30°
5
44°
28°
6
38°
26°
7
34°
27°
8
37°
19°
9
28°
20°
10
33°
21°
11
34°
23°
12
34°
26°
13
37°
26°
14
38°
25°
15
37°
26°
16
37°
26°
17
38°
25°
18
36°
25°
19
37°
24°
20
34°
24°
21
27°
20°
22
29°
20°
23
32°
15°
24
30°
7°
25
25°
5°
26
22°
12°
27
23°
11°
28
31°
8°
29
30°
13°
30
36°
7°
31
35°
6°
1
20°
4°
2
20°
1°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Erin
Erin's December 2026 forecast shows daily high temperatures ranging from 20° to 44°, with overnight lows between 1° and 31°. The average high for December is 34° with an average low of 20°. 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 Erin. See also: January | February | March.
