S
M
T
W
T
F
S
26
91°
60°
27
83°
61°
28
88°
56°
29
69°
51°
30
62°
50°
1
60°
50°
2
71°
41°
3
78°
46°
4
89°
54°
5
79°
60°
6
71°
45°
7
76°
43°
8
89°
51°
9
94°
54°
10
72°
53°
11
80°
45°
12
95°
56°
13
95°
62°
14
96°
57°
15
96°
66°
16
97°
64°
17
96°
64°
18
93°
72°
19
77°
51°
20
66°
53°
21
76°
58°
22
86°
60°
23
86°
58°
24
87°
57°
25
88°
62°
26
69°
58°
27
84°
60°
28
88°
62°
29
87°
61°
30
89°
62°
31
82°
59°
1
75°
58°
2
76°
57°
3
79°
59°
4
83°
60°
5
86°
63°
6
90°
64°
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 69° to 90°, with overnight lows between 57° and 64°. The average high for May is 83° with an average low of 60°. 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.
