S
M
T
W
T
F
S
26
90°
63°
27
75°
66°
28
88°
64°
29
93°
64°
30
88°
70°
1
88°
68°
2
72°
57°
3
77°
55°
4
82°
52°
5
86°
54°
6
93°
63°
7
93°
70°
8
88°
72°
9
81°
66°
10
91°
70°
11
91°
72°
12
75°
72°
13
86°
68°
14
90°
64°
15
86°
63°
16
93°
70°
17
91°
73°
18
90°
64°
19
90°
66°
20
91°
67°
21
92°
69°
22
93°
69°
23
90°
70°
24
91°
70°
25
91°
69°
26
91°
68°
27
90°
67°
28
90°
67°
29
88°
66°
30
88°
66°
31
88°
67°
1
87°
66°
2
90°
69°
3
90°
70°
4
87°
69°
5
88°
70°
6
88°
70°
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 87° to 93°, with overnight lows between 66° and 70°. The average high for May is 90° with an average low of 68°. 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.
