S
M
T
W
T
F
S
29
52°
37°
30
50°
39°
31
59°
46°
1
57°
34°
2
50°
30°
3
50°
37°
4
50°
34°
5
45°
34°
6
55°
34°
7
73°
47°
8
59°
44°
9
49°
34°
10
45°
39°
11
48°
36°
12
47°
36°
13
48°
37°
14
51°
42°
15
52°
40°
16
53°
40°
17
52°
38°
18
53°
39°
19
55°
40°
20
49°
41°
21
50°
42°
22
54°
41°
23
55°
42°
24
55°
42°
25
51°
41°
26
54°
38°
27
50°
37°
28
50°
38°
29
54°
42°
30
52°
43°
1
52°
42°
2
55°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Lanark
Lanark's April 2026 forecast shows daily high temperatures ranging from 45° to 73°, with overnight lows between 34° and 47°. The average high for April is 53° with an average low of 40°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how April weather will actually feel in Lanark. See also: May | June | July.
