S
M
T
W
T
F
S
29
51°
17°
30
69°
27°
31
62°
47°
1
60°
37°
2
42°
35°
3
68°
40°
4
52°
43°
5
52°
30°
6
37°
23°
7
36°
17°
8
45°
33°
9
57°
36°
10
55°
39°
11
65°
41°
12
57°
40°
13
58°
40°
14
55°
36°
15
53°
32°
16
51°
24°
17
45°
24°
18
46°
25°
19
48°
28°
20
59°
39°
21
61°
38°
22
60°
38°
23
52°
37°
24
62°
40°
25
64°
39°
26
59°
39°
27
53°
36°
28
52°
34°
29
52°
36°
30
55°
37°
1
53°
34°
2
54°
31°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Johnsburg
Johnsburg's April 2026 forecast shows daily high temperatures ranging from 36° to 68°, with overnight lows between 17° and 43°. The average high for April is 54° with an average low of 34°. 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 Johnsburg. See also: May | June | July.
