S
M
T
W
T
F
S
29
70°
35°
30
80°
38°
31
55°
36°
1
48°
32°
2
37°
33°
3
38°
33°
4
39°
33°
5
55°
31°
6
41°
28°
7
42°
24°
8
66°
37°
9
50°
31°
10
53°
33°
11
51°
35°
12
72°
50°
13
76°
51°
14
67°
52°
15
66°
47°
16
74°
45°
17
74°
35°
18
45°
28°
19
46°
31°
20
60°
28°
21
80°
43°
22
81°
45°
23
72°
53°
24
63°
40°
25
68°
48°
26
70°
51°
27
65°
39°
28
57°
37°
29
58°
36°
30
53°
36°
1
50°
33°
2
55°
36°
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 50° to 70°, with overnight lows between 33° and 51°. The average high for April is 60° 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 Johnsburg. See also: May | June | July.
