S
M
T
W
T
F
S
28
77°
46°
29
45°
30°
30
48°
23°
31
63°
27°
1
72°
32°
2
72°
54°
3
55°
45°
4
52°
41°
5
70°
36°
6
77°
48°
7
75°
41°
8
77°
55°
9
68°
57°
10
57°
37°
11
54°
28°
12
57°
25°
13
68°
28°
14
63°
37°
15
54°
23°
16
63°
30°
17
45°
25°
18
46°
19°
19
57°
23°
20
52°
25°
21
52°
37°
22
59°
41°
23
46°
27°
24
27°
16°
25
25°
16°
26
34°
16°
27
45°
23°
28
52°
21°
29
55°
25°
30
46°
28°
31
34°
18°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Lanark
Lanark'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 Lanark. See also: February | March | April.
