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
85°
70°
8
80°
69°
9
80°
70°
10
81°
71°
11
81°
70°
12
78°
69°
13
81°
67°
14
83°
68°
15
85°
67°
16
87°
70°
17
85°
67°
18
84°
69°
19
82°
68°
20
84°
67°
21
86°
70°
22
86°
69°
23
85°
69°
24
85°
68°
25
79°
67°
26
80°
66°
27
80°
68°
28
81°
67°
29
80°
67°
30
80°
69°
31
81°
70°
1
82°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Chattanooga Valley
Chattanooga Valley's July 2026 forecast shows daily high temperatures ranging from 78° to 87°, with overnight lows between 66° and 71°. The average high for July is 82° 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 July weather will actually feel in Chattanooga Valley. See also: August | September | October.