S
M
T
W
T
F
S
27
63°
51°
28
84°
55°
29
66°
46°
30
67°
47°
1
67°
49°
2
57°
47°
3
65°
40°
4
73°
42°
5
76°
49°
6
76°
49°
7
77°
53°
8
78°
57°
9
79°
50°
10
86°
54°
11
85°
56°
12
84°
52°
13
86°
56°
14
88°
63°
15
79°
60°
16
74°
54°
17
74°
49°
18
79°
46°
19
74°
57°
20
64°
47°
21
70°
45°
22
67°
47°
23
64°
46°
24
74°
55°
25
68°
54°
26
63°
53°
27
61°
52°
28
67°
49°
29
72°
54°
30
77°
52°
31
87°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Johnson
Johnson's May 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for May is ° with an average low of °. 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.