S
M
T
W
T
F
S
31
81°
67°
1
81°
67°
2
82°
64°
3
83°
57°
4
85°
58°
5
84°
58°
6
87°
61°
7
76°
67°
8
81°
72°
9
89°
71°
10
91°
70°
11
93°
71°
12
91°
72°
13
93°
70°
14
87°
72°
15
84°
64°
16
84°
63°
17
88°
69°
18
87°
72°
19
88°
70°
20
83°
65°
21
87°
63°
22
89°
70°
23
80°
62°
24
87°
64°
25
88°
69°
26
90°
73°
27
90°
70°
28
92°
72°
29
95°
73°
30
93°
74°
1
95°
74°
2
90°
71°
3
90°
70°
4
89°
71°
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 80° to 95°, with overnight lows between 62° and 74°. The average high for June is 90° with an average low of 70°. 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.