S
M
T
W
T
F
S
28
91°
73°
29
93°
70°
30
95°
70°
1
95°
73°
2
97°
73°
3
97°
72°
4
91°
72°
5
91°
72°
6
90°
72°
7
90°
72°
8
91°
68°
9
90°
70°
10
88°
72°
11
84°
73°
12
88°
72°
13
80°
70°
14
81°
68°
15
88°
69°
16
90°
71°
17
91°
70°
18
89°
68°
19
86°
68°
20
88°
66°
21
86°
65°
22
85°
63°
23
84°
66°
24
85°
67°
25
84°
67°
26
87°
66°
27
90°
69°
28
88°
69°
29
86°
67°
30
86°
69°
31
88°
69°
1
88°
68°
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 80° to 91°, with overnight lows between 63° and 71°. The average high for July is 87° with an average low of 68°. 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.
