S
M
T
W
T
F
S
28
90°
74°
29
91°
76°
30
N/A
1
92°
72°
2
92°
74°
3
94°
74°
4
92°
71°
5
95°
72°
6
91°
74°
7
93°
73°
8
92°
72°
9
93°
72°
10
93°
73°
11
92°
75°
12
96°
75°
13
97°
74°
14
94°
69°
15
94°
72°
16
89°
68°
17
95°
73°
18
96°
72°
19
96°
74°
20
97°
75°
21
98°
75°
22
98°
74°
23
97°
76°
24
98°
76°
25
98°
75°
26
99°
76°
27
99°
76°
28
98°
75°
29
98°
75°
30
96°
74°
31
98°
74°
1
96°
73°
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 89° to 99°, with overnight lows between 68° and 76°. The average high for July is 95° with an average low of 74°. 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.
