S
M
T
W
T
F
S
26
94°
69°
27
90°
67°
28
90°
67°
29
92°
68°
30
93°
66°
31
89°
65°
1
89°
65°
2
90°
66°
3
91°
70°
4
94°
69°
5
89°
70°
6
89°
68°
7
88°
66°
8
89°
68°
9
93°
69°
10
92°
70°
11
93°
71°
12
92°
69°
13
89°
70°
14
92°
66°
15
89°
69°
16
89°
68°
17
Hist. Avg.
93°
72°
18
Hist. Avg.
93°
71°
19
Hist. Avg.
93°
71°
20
Hist. Avg.
93°
71°
21
Hist. Avg.
93°
71°
22
Hist. Avg.
93°
71°
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 88° to 94°, with overnight lows between 65° and 71°. The average high for August is 91° with an average low of 68°. 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.
