S
M
T
W
T
F
S
31
69°
43°
1
66°
49°
2
71°
46°
3
77°
49°
4
80°
59°
5
84°
65°
6
78°
60°
7
75°
53°
8
76°
53°
9
78°
57°
10
82°
60°
11
80°
61°
12
83°
65°
13
82°
62°
14
77°
61°
15
78°
60°
16
76°
63°
17
78°
61°
18
71°
59°
19
74°
57°
20
71°
55°
21
77°
53°
22
69°
52°
23
70°
52°
24
71°
60°
25
77°
62°
26
79°
55°
27
72°
54°
28
72°
55°
29
73°
54°
30
72°
54°
1
74°
56°
2
73°
55°
3
75°
56°
4
79°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Johnson City
Johnson City's June 2026 forecast shows daily high temperatures ranging from 69° to 84°, with overnight lows between 52° and 65°. The average high for June is 76° with an average low of 58°. 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 Johnson City. See also: July | August | September.