S
M
T
W
T
F
S
27
49°
25°
28
50°
26°
29
50°
31°
30
53°
28°
31
50°
26°
1
48°
22°
2
47°
23°
3
47°
30°
4
50°
34°
5
56°
43°
6
63°
34°
7
64°
24°
8
56°
23°
9
47°
26°
10
48°
24°
11
49°
22°
12
48°
21°
13
46°
21°
14
46°
22°
15
47°
24°
16
48°
29°
17
49°
24°
18
49°
22°
19
45°
20°
20
43°
23°
21
48°
34°
22
53°
41°
23
57°
40°
24
61°
35°
25
58°
30°
26
56°
28°
27
54°
30°
28
53°
26°
29
53°
29°
30
46°
23°
31
47°
25°
1
Hist. Avg.
60°
37°
2
Hist. Avg.
60°
37°
3
Hist. Avg.
60°
38°
4
Hist. Avg.
61°
38°
5
Hist. Avg.
61°
38°
6
Hist. Avg.
61°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in De Kalb
De Kalb's January 2027 forecast shows daily high temperatures ranging from 43° to 64°, with overnight lows between 20° and 43°. The average high for January is 51° with an average low of 27°. 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 De Kalb. See also: February | March | April.
