S
M
T
W
T
F
S
26
68°
52°
27
62°
46°
28
54°
42°
29
61°
39°
30
60°
40°
1
61°
37°
2
66°
35°
3
75°
49°
4
86°
48°
5
58°
41°
6
58°
40°
7
68°
46°
8
70°
45°
9
75°
49°
10
64°
45°
11
68°
47°
12
79°
52°
13
82°
54°
14
79°
51°
15
78°
53°
16
75°
50°
17
76°
55°
18
78°
53°
19
79°
48°
20
75°
52°
21
73°
48°
22
69°
47°
23
70°
48°
24
71°
49°
25
70°
49°
26
71°
48°
27
72°
50°
28
72°
54°
29
73°
59°
30
76°
58°
31
74°
51°
1
74°
53°
2
77°
58°
3
80°
61°
4
80°
62°
5
83°
62°
6
78°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Johnson
Johnson's May 2026 forecast shows daily high temperatures ranging from 58° to 86°, with overnight lows between 40° and 62°. The average high for May is 74° with an average low of 51°. 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 Johnson. See also: June | July | August.
