S
M
T
W
T
F
S
26
57°
35°
27
53°
36°
28
54°
38°
29
57°
37°
30
58°
36°
1
57°
35°
2
58°
35°
3
58°
36°
4
57°
33°
5
58°
34°
6
60°
38°
7
65°
40°
8
63°
37°
9
62°
44°
10
61°
35°
11
60°
35°
12
60°
36°
13
59°
37°
14
60°
36°
15
62°
39°
16
63°
38°
17
64°
47°
18
70°
38°
19
62°
38°
20
64°
39°
21
66°
48°
22
65°
49°
23
67°
50°
24
75°
51°
25
72°
51°
26
74°
52°
27
75°
51°
28
75°
49°
29
78°
50°
30
78°
50°
31
74°
48°
1
70°
46°
2
69°
49°
3
76°
53°
4
72°
53°
5
74°
52°
6
74°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Johnsonburg
Johnsonburg's May 2026 forecast shows daily high temperatures ranging from 53° to 78°, with overnight lows between 33° and 53°. The average high for May is 65° with an average low of 43°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Johnsonburg. See also: June | July | August.
