S
M
T
W
T
F
S
31
83°
61°
1
79°
67°
2
81°
61°
3
80°
57°
4
84°
56°
5
83°
61°
6
87°
65°
7
86°
68°
8
78°
70°
9
81°
70°
10
85°
70°
11
89°
68°
12
90°
67°
13
90°
70°
14
87°
65°
15
85°
66°
16
84°
67°
17
83°
65°
18
84°
68°
19
85°
63°
20
82°
66°
21
83°
65°
22
83°
67°
23
82°
67°
24
83°
66°
25
85°
67°
26
86°
67°
27
83°
66°
28
83°
67°
29
84°
62°
30
84°
64°
1
87°
68°
2
86°
68°
3
84°
67°
4
82°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Knoxville
Knoxville's June 2026 forecast shows daily high temperatures ranging from 78° to 90°, with overnight lows between 62° and 70°. The average high for June is 85° with an average low of 67°. 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 Knoxville. See also: July | August | September.