S
M
T
W
T
F
S
28
94°
76°
29
92°
75°
30
97°
75°
1
96°
73°
2
98°
73°
3
96°
72°
4
94°
72°
5
92°
73°
6
90°
71°
7
89°
70°
8
90°
71°
9
89°
71°
10
91°
70°
11
90°
70°
12
91°
72°
13
92°
73°
14
92°
72°
15
90°
70°
16
89°
69°
17
89°
71°
18
91°
72°
19
92°
73°
20
92°
71°
21
88°
73°
22
87°
72°
23
86°
72°
24
87°
73°
25
88°
72°
26
87°
73°
27
87°
73°
28
88°
72°
29
87°
73°
30
87°
71°
31
89°
68°
1
87°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Chattanooga
Chattanooga's July 2026 forecast shows daily high temperatures ranging from 86° to 98°, with overnight lows between 68° and 75°. The average high for July is 90° with an average low of 72°. 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 Chattanooga. See also: August | September | October.