S
M
T
W
T
F
S
28
84°
72°
29
91°
72°
30
94°
71°
1
94°
73°
2
92°
71°
3
91°
70°
4
89°
69°
5
86°
68°
6
87°
66°
7
84°
65°
8
84°
66°
9
86°
65°
10
85°
66°
11
82°
64°
12
82°
67°
13
79°
60°
14
78°
60°
15
79°
62°
16
81°
64°
17
83°
67°
18
86°
66°
19
80°
64°
20
80°
66°
21
84°
67°
22
86°
68°
23
87°
68°
24
87°
69°
25
88°
67°
26
87°
68°
27
86°
68°
28
87°
67°
29
86°
67°
30
85°
65°
31
81°
61°
1
78°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in DeKalb
DeKalb's July 2026 forecast shows daily high temperatures ranging from 78° to 94°, with overnight lows between 60° and 73°. The average high for July is 85° with an average low of 67°. 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 DeKalb. See also: August | September | October.
