S
M
T
W
T
F
S
31
77°
62°
1
79°
62°
2
78°
64°
3
80°
63°
4
82°
65°
5
83°
64°
6
80°
62°
7
81°
65°
8
82°
68°
9
83°
68°
10
85°
69°
11
86°
69°
12
84°
68°
13
84°
69°
14
86°
69°
15
84°
70°
16
83°
70°
17
84°
69°
18
85°
70°
19
88°
71°
20
86°
70°
21
87°
71°
22
85°
71°
23
86°
70°
24
85°
70°
25
85°
68°
26
89°
71°
27
90°
72°
28
90°
72°
29
91°
71°
30
91°
72°
1
87°
72°
2
85°
71°
3
86°
71°
4
86°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Chattanooga
Chattanooga's June 2026 forecast shows daily high temperatures ranging from 77° to 91°, with overnight lows between 62° and 72°. The average high for June is 85° with an average low of 69°. 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 Chattanooga. See also: July | August | September.