S
M
T
W
T
F
S
26
79°
68°
27
79°
67°
28
83°
62°
29
79°
59°
30
77°
58°
31
77°
58°
1
78°
59°
2
77°
58°
3
78°
59°
4
79°
60°
5
78°
63°
6
80°
60°
7
76°
59°
8
76°
60°
9
76°
59°
10
77°
59°
11
82°
60°
12
81°
59°
13
81°
64°
14
83°
65°
15
82°
66°
16
83°
58°
17
79°
59°
18
77°
60°
19
75°
64°
20
81°
64°
21
83°
65°
22
82°
64°
23
82°
61°
24
81°
60°
25
75°
64°
26
78°
59°
27
76°
56°
28
Hist. Avg.
79°
60°
29
Hist. Avg.
79°
60°
30
Hist. Avg.
78°
59°
31
Hist. Avg.
78°
59°
1
Hist. Avg.
78°
59°
2
Hist. Avg.
78°
58°
3
Hist. Avg.
78°
58°
4
Hist. Avg.
78°
58°
5
Hist. Avg.
77°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in North Chicago
North Chicago's August 2026 forecast shows daily high temperatures ranging from 75° to 83°, with overnight lows between 56° and 68°. The average high for August is 79° 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 August weather will actually feel in North Chicago. See also: September | October | November.
