S
M
T
W
T
F
S
28
86°
72°
29
85°
71°
30
86°
67°
1
85°
66°
2
85°
69°
3
86°
72°
4
85°
71°
5
85°
69°
6
86°
67°
7
86°
68°
8
87°
72°
9
87°
73°
10
88°
72°
11
85°
71°
12
85°
72°
13
88°
71°
14
88°
69°
15
89°
68°
16
87°
68°
17
88°
67°
18
90°
68°
19
92°
68°
20
93°
73°
21
93°
72°
22
88°
70°
23
87°
68°
24
87°
69°
25
90°
68°
26
89°
69°
27
91°
68°
28
91°
71°
29
93°
71°
30
93°
72°
31
91°
72°
1
91°
71°
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 85° to 93°, with overnight lows between 66° and 73°. The average high for July is 88° 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 July weather will actually feel in Chattanooga. See also: August | September | October.