S
M
T
W
T
F
S
29
46°
31°
30
65°
27°
31
48°
37°
1
44°
30°
2
47°
29°
3
72°
38°
4
47°
35°
5
48°
34°
6
45°
30°
7
35°
22°
8
44°
18°
9
59°
32°
10
43°
32°
11
49°
24°
12
47°
40°
13
60°
41°
14
59°
47°
15
65°
46°
16
62°
42°
17
64°
33°
18
53°
29°
19
50°
30°
20
52°
34°
21
58°
40°
22
62°
44°
23
61°
31°
24
50°
38°
25
54°
39°
26
54°
37°
27
51°
34°
28
59°
34°
29
58°
38°
30
59°
41°
1
59°
37°
2
56°
30°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Round Lake
Round Lake's April 2026 forecast shows daily high temperatures ranging from 43° to 65°, with overnight lows between 24° and 47°. The average high for April is 56° with an average low of 37°. 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 Round Lake. See also: May | June | July.
