S
M
T
W
T
F
S
26
95°
69°
27
93°
67°
28
93°
72°
29
95°
69°
30
91°
72°
31
94°
70°
1
94°
67°
2
93°
66°
3
93°
72°
4
94°
72°
5
95°
71°
6
94°
69°
7
93°
70°
8
93°
72°
9
90°
70°
10
89°
72°
11
94°
71°
12
92°
68°
13
89°
68°
14
91°
67°
15
92°
69°
16
94°
67°
17
92°
70°
18
95°
69°
19
91°
68°
20
93°
70°
21
91°
69°
22
87°
66°
23
Hist. Avg.
93°
71°
24
Hist. Avg.
92°
71°
25
Hist. Avg.
92°
70°
26
Hist. Avg.
92°
70°
27
Hist. Avg.
92°
70°
28
Hist. Avg.
92°
70°
29
Hist. Avg.
92°
70°
30
Hist. Avg.
92°
70°
31
Hist. Avg.
92°
70°
1
Hist. Avg.
92°
69°
2
Hist. Avg.
91°
69°
3
Hist. Avg.
91°
69°
4
Hist. Avg.
91°
69°
5
Hist. Avg.
91°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in De Kalb
De Kalb's August 2026 forecast shows daily high temperatures ranging from 87° to 95°, with overnight lows between 66° and 72°. The average high for August is 93° with an average low of 69°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in De Kalb. See also: September | October | November.
