S
M
T
W
T
F
S
27
31°
17°
28
29°
20°
29
30°
20°
30
29°
11°
31
29°
12°
1
30°
14°
2
29°
10°
3
26°
5°
4
23°
15°
5
24°
13°
6
28°
12°
7
23°
13°
8
23°
5°
9
25°
14°
10
26°
16°
11
27°
12°
12
25°
10°
13
22°
7°
14
28°
6°
15
29°
4°
16
29°
2°
17
30°
3°
18
17°
4°
19
20°
9°
20
25°
5°
21
27°
5°
22
29°
8°
23
27°
3°
24
31°
17°
25
34°
16°
26
34°
13°
27
32°
9°
28
28°
7°
29
23°
7°
30
25°
8°
31
24°
1°
1
21°
8°
2
27°
1°
3
32°
2°
4
16°
1°
5
21°
-2°
6
24°
8°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Erin
Erin's January 2027 forecast shows daily high temperatures ranging from 16° to 34°, with overnight lows between -2° and 20°. The average high for January is 26° with an average low of 9°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how January weather will actually feel in Erin. See also: February | March | April.