S
M
T
W
T
F
S
26
37°
32°
27
45°
32°
28
50°
36°
29
60°
41°
30
65°
47°
1
69°
50°
2
69°
51°
3
64°
42°
4
47°
38°
5
60°
41°
6
68°
49°
7
71°
49°
8
65°
47°
9
64°
49°
10
72°
53°
11
68°
51°
12
67°
53°
13
71°
53°
14
65°
40°
15
59°
37°
16
60°
38°
17
59°
38°
18
59°
40°
19
58°
36°
20
60°
38°
21
65°
41°
22
69°
44°
23
70°
46°
24
70°
46°
25
71°
45°
26
70°
44°
27
71°
42°
28
68°
42°
29
65°
41°
30
63°
40°
31
63°
39°
1
64°
41°
2
68°
44°
3
70°
47°
4
69°
48°
5
69°
47°
6
66°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Johnsville
Johnsville's May 2026 forecast shows daily high temperatures ranging from 47° to 72°, with overnight lows between 36° and 53°. The average high for May is 66° with an average low of 44°. 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 Johnsville. See also: June | July | August.
