S
M
T
W
T
F
S
29
62°
26°
30
66°
49°
31
75°
56°
1
74°
56°
2
57°
48°
3
76°
47°
4
79°
60°
5
68°
38°
6
50°
32°
7
40°
23°
8
51°
32°
9
63°
40°
10
73°
48°
11
63°
43°
12
72°
58°
13
75°
60°
14
79°
57°
15
74°
43°
16
54°
37°
17
56°
40°
18
62°
43°
19
64°
38°
20
64°
46°
21
65°
46°
22
66°
47°
23
68°
45°
24
66°
44°
25
60°
37°
26
56°
42°
27
56°
37°
28
57°
40°
29
56°
35°
30
56°
35°
1
60°
37°
2
57°
37°
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 40° to 79°, with overnight lows between 23° and 60°. The average high for April is 62° with an average low of 42°. 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.
