S
M
T
W
T
F
S
31
63°
55°
1
N/A
2
63°
52°
3
58°
51°
4
60°
48°
5
58°
47°
6
60°
50°
7
62°
50°
8
60°
49°
9
62°
48°
10
64°
50°
11
62°
48°
12
65°
51°
13
68°
50°
14
60°
44°
15
60°
49°
16
61°
47°
17
59°
45°
18
60°
45°
19
60°
46°
20
61°
48°
21
61°
50°
22
60°
48°
23
61°
48°
24
61°
47°
25
60°
46°
26
60°
46°
27
62°
47°
28
61°
48°
29
61°
51°
30
62°
50°
1
62°
50°
2
63°
52°
3
62°
50°
4
62°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
June Weather in Johnstone
Johnstone's June 2026 forecast shows daily high temperatures ranging from 58° to 68°, with overnight lows between 44° and 52°. The average high for June is 61° with an average low of 49°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Johnstone. See also: July | August | September.
