S
M
T
W
T
F
S
28
97°
78°
29
98°
78°
30
95°
75°
1
95°
76°
2
96°
77°
3
97°
76°
4
99°
79°
5
95°
73°
6
98°
73°
7
98°
73°
8
100°
78°
9
100°
80°
10
98°
78°
11
98°
77°
12
97°
74°
13
89°
72°
14
83°
70°
15
83°
72°
16
87°
74°
17
89°
75°
18
94°
75°
19
98°
77°
20
100°
79°
21
99°
77°
22
97°
76°
23
94°
75°
24
94°
75°
25
93°
76°
26
98°
75°
27
100°
79°
28
100°
78°
29
99°
79°
30
100°
79°
31
100°
78°
1
99°
79°
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 83° to 100°, with overnight lows between 70° and 79°. The average high for July is 95° with an average low of 76°. 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.
