S
M
T
W
T
F
S
28
84°
63°
29
93°
72°
30
92°
78°
1
92°
80°
2
91°
73°
3
88°
69°
4
81°
70°
5
79°
69°
6
85°
63°
7
82°
61°
8
86°
58°
9
83°
65°
10
81°
66°
11
85°
66°
12
83°
63°
13
85°
61°
14
95°
70°
15
96°
66°
16
97°
67°
17
92°
72°
18
89°
68°
19
85°
60°
20
82°
59°
21
80°
57°
22
77°
56°
23
76°
55°
24
83°
58°
25
82°
59°
26
84°
60°
27
81°
59°
28
82°
58°
29
77°
56°
30
76°
56°
31
78°
60°
1
82°
63°
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 76° to 97°, with overnight lows between 55° and 72°. The average high for July is 84° with an average low of 61°. 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.
