S
M
T
W
T
F
S
28
86°
66°
29
86°
67°
30
91°
69°
1
91°
69°
2
90°
71°
3
92°
71°
4
91°
70°
5
88°
69°
6
87°
68°
7
86°
68°
8
86°
69°
9
87°
69°
10
90°
68°
11
91°
70°
12
92°
71°
13
92°
70°
14
90°
68°
15
91°
69°
16
92°
68°
17
91°
70°
18
90°
70°
19
89°
71°
20
90°
70°
21
91°
71°
22
92°
71°
23
93°
70°
24
91°
70°
25
90°
69°
26
90°
68°
27
89°
68°
28
87°
69°
29
91°
72°
30
93°
70°
31
92°
69°
1
88°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Decatur
Decatur's July 2026 forecast shows daily high temperatures ranging from 86° to 93°, with overnight lows between 66° and 72°. The average high for July is 90° 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 Decatur. See also: August | September | October.
