S
M
T
W
T
F
S
28
83°
66°
29
86°
67°
30
88°
66°
1
88°
65°
2
86°
67°
3
86°
67°
4
85°
66°
5
86°
62°
6
88°
59°
7
83°
61°
8
77°
65°
9
79°
67°
10
81°
67°
11
87°
68°
12
85°
68°
13
85°
67°
14
84°
67°
15
84°
66°
16
82°
61°
17
83°
58°
18
79°
58°
19
77°
57°
20
78°
58°
21
79°
59°
22
80°
60°
23
79°
61°
24
82°
62°
25
85°
63°
26
85°
66°
27
86°
67°
28
85°
64°
29
86°
66°
30
Hist. Avg.
83°
63°
31
Hist. Avg.
82°
63°
1
Hist. Avg.
82°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
July Weather in DeKalb
DeKalb's July 2026 forecast shows daily high temperatures ranging from 77° to 88°, with overnight lows between 57° and 68°. The average high for July is 83° with an average low of 64°. 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.
