S
M
T
W
T
F
S
28
97°
78°
29
98°
78°
30
95°
75°
1
95°
75°
2
96°
75°
3
94°
78°
4
95°
77°
5
94°
73°
6
95°
75°
7
99°
76°
8
98°
76°
9
96°
77°
10
96°
76°
11
97°
77°
12
96°
76°
13
97°
77°
14
95°
74°
15
99°
77°
16
99°
78°
17
99°
79°
18
100°
79°
19
99°
78°
20
100°
79°
21
100°
79°
22
99°
80°
23
100°
80°
24
101°
79°
25
100°
79°
26
100°
80°
27
99°
80°
28
100°
79°
29
100°
79°
30
101°
80°
31
101°
80°
1
100°
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 94° to 101°, with overnight lows between 73° and 80°. The average high for July is 98° with an average low of 78°. 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.
