S
M
T
W
T
F
S
26
54°
34°
27
54°
25°
28
59°
27°
29
66°
30°
30
68°
32°
1
72°
36°
2
68°
39°
3
70°
43°
4
70°
47°
5
76°
45°
6
79°
48°
7
87°
48°
8
80°
42°
9
85°
46°
10
87°
50°
11
90°
49°
12
89°
50°
13
83°
46°
14
83°
48°
15
81°
47°
16
79°
49°
17
82°
51°
18
73°
42°
19
73°
46°
20
75°
46°
21
75°
45°
22
74°
46°
23
75°
47°
24
76°
48°
25
77°
48°
26
77°
47°
27
76°
47°
28
75°
46°
29
72°
47°
30
73°
47°
31
74°
48°
1
76°
49°
2
78°
48°
3
78°
49°
4
77°
49°
5
78°
48°
6
75°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Johnstonville
Johnstonville's May 2026 forecast shows daily high temperatures ranging from 70° to 90°, with overnight lows between 42° and 51°. The average high for May is 78° with an average low of 47°. 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 Johnstonville. See also: June | July | August.
