S
M
T
W
T
F
S
26
54°
39°
27
55°
40°
28
53°
37°
29
54°
39°
30
55°
40°
1
56°
42°
2
57°
42°
3
56°
40°
4
56°
37°
5
55°
38°
6
54°
38°
7
54°
38°
8
55°
39°
9
55°
41°
10
56°
39°
11
58°
41°
12
58°
42°
13
56°
43°
14
58°
44°
15
56°
43°
16
55°
41°
17
56°
45°
18
54°
46°
19
56°
46°
20
58°
45°
21
58°
46°
22
55°
45°
23
55°
43°
24
56°
42°
25
55°
42°
26
56°
41°
27
60°
44°
28
60°
46°
29
58°
44°
30
57°
45°
31
58°
44°
1
60°
48°
2
59°
48°
3
60°
47°
4
61°
48°
5
63°
49°
6
63°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Lanark
Lanark's May 2026 forecast shows daily high temperatures ranging from 53° to 63°, with overnight lows between 37° and 50°. The average high for May is 57° with an average low of 43°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Lanark. See also: June | July | August.
