S
M
T
W
T
F
S
28
39°
15°
29
37°
19°
30
25°
16°
31
29°
16°
1
30°
25°
2
27°
21°
3
25°
17°
4
25°
18°
5
23°
14°
6
20°
14°
7
23°
11°
8
27°
15°
9
26°
14°
10
21°
8°
11
23°
1°
12
37°
8°
13
37°
28°
14
38°
26°
15
42°
26°
16
44°
29°
17
43°
23°
18
42°
22°
19
38°
20°
20
41°
16°
21
43°
17°
22
37°
13°
23
34°
11°
24
29°
13°
25
34°
17°
26
28°
18°
27
32°
18°
28
28°
18°
29
29°
17°
30
30°
16°
31
32°
16°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Reinsdorf
Reinsdorf's January 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for January is ° with an average low of °. 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 Reinsdorf. See also: February | March | April.