S
M
T
W
T
F
S
28
104°
69°
29
104°
70°
30
100°
67°
1
98°
69°
2
99°
66°
3
95°
67°
4
92°
64°
5
94°
64°
6
94°
59°
7
97°
65°
8
98°
64°
9
96°
66°
10
92°
64°
11
89°
62°
12
90°
64°
13
91°
65°
14
89°
61°
15
91°
61°
16
91°
62°
17
92°
60°
18
97°
65°
19
96°
64°
20
101°
65°
21
102°
71°
22
100°
64°
23
104°
68°
24
98°
69°
25
103°
67°
26
110°
73°
27
109°
75°
28
100°
70°
29
96°
69°
30
101°
67°
31
97°
63°
1
94°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Johnson City
Johnson City's July 2026 forecast shows daily high temperatures ranging from 94° to 97°, with overnight lows between 61° and 63°. The average high for July is 96° with an average low of 62°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Johnson City. See also: August | September | October.