S
M
T
W
T
F
S
28
90°
74°
29
91°
76°
30
93°
76°
1
92°
73°
2
92°
70°
3
92°
72°
4
93°
68°
5
88°
65°
6
90°
69°
7
90°
66°
8
93°
67°
9
93°
76°
10
93°
75°
11
92°
71°
12
85°
69°
13
89°
70°
14
88°
69°
15
85°
71°
16
85°
69°
17
87°
72°
18
89°
72°
19
95°
76°
20
97°
77°
21
101°
74°
22
95°
76°
23
97°
74°
24
95°
75°
25
96°
76°
26
93°
78°
27
97°
76°
28
98°
74°
29
94°
69°
30
97°
75°
31
97°
74°
1
96°
74°
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 85° to 101°, with overnight lows between 69° and 78°. 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.
