S
M
T
W
T
F
S
28
94°
76°
29
96°
73°
30
98°
74°
1
99°
77°
2
100°
77°
3
100°
70°
4
94°
71°
5
92°
73°
6
90°
70°
7
94°
73°
8
91°
73°
9
93°
72°
10
90°
71°
11
89°
72°
12
89°
73°
13
82°
71°
14
87°
72°
15
89°
73°
16
92°
74°
17
92°
74°
18
93°
73°
19
92°
74°
20
94°
73°
21
93°
76°
22
91°
78°
23
81°
72°
24
86°
73°
25
84°
72°
26
92°
72°
27
94°
74°
28
94°
74°
29
91°
69°
30
88°
70°
31
88°
70°
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 81° to 94°, with overnight lows between 69° and 74°. The average high for July is 89° 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.