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Chicago O'Hare International Airport, IL

72°F
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Chicago O'Hare International Airport

Illinois

72°
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Chicago O'Hare International Airport, IL Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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Today Hourly 10-Day Radar MinuteCast®

Monthly

 Air Quality Health & Activities
Beach Hazards Statement

August

January February March April May June July August September October November December

2026

2025 2026 2027

10-Day

S
M
T
W
T
F
S
26
Partly sunny and humid
90°
77°
27
Hot with a t-storm possible
92°
73°
28
Mostly sunny
89°
68°
29
Sunny and less humid
85°
67°
30
Plenty of sunshine
86°
68°
31
Strong t-storms; some sun
87°
66°
1
Partly sunny with a shower
83°
65°
2
Clouds and sun
83°
65°
3
Mostly sunny
84°
66°
4
Clouding up
88°
75°
5
Plenty of sunshine
79°
64°
6
Mostly sunny
82°
66°
7
Increasing cloudiness
86°
70°
8
Humid; a morning thunderstorm
85°
70°
9
A shower and thunderstorm
85°
69°
10
Humid; an afternoon t-shower
81°
69°
11
A thunderstorm in spots
80°
70°
12
Humid; a morning t-shower
83°
70°
13
Decreasing clouds; less humid
86°
69°
14
Rather cloudy and humid
83°
69°
15
Mostly sunny
86°
67°
16
Mostly sunny
79°
64°
17
Mostly sunny
79°
65°
18
Sunshine and a few clouds
80°
64°
19
Mostly sunny
80°
64°
20
A blend of sun and clouds
83°
69°
21
Plenty of sunshine
86°
69°
22
Plenty of sunshine
85°
68°
23
Sunlit and humid
85°
70°
24
Sunny, warm and humid
86°
70°
25
Increasing clouds; less humid
87°
69°
26
Warm and humid with some sun
87°
70°
27
Mostly sunny and warm
86°
69°
28
Sunny and less humid
82°
68°
29
Plenty of sunshine
80°
67°
30
Plenty of sunshine
83°
67°
31
Warm with plenty of sunshine
85°
68°
1
Becoming cloudy and warm
86°
67°
2
Morning t-storms, then rain
83°
62°
3
A sun-and-cloud mix
75°
61°
4
Sunshine and some clouds
76°
59°
5
Mostly sunny
79°
60°

Temperature Graph

°F
90° 84° 78° 72° 66° Aug
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo

August Weather in Chicago O'Hare International Airport

Chicago O'Hare International Airport's August 2026 forecast shows daily high temperatures ranging from 75° to 92°, with overnight lows between 59° and 77°. The average high for August is 84° 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 August weather will actually feel in Chicago O'Hare International Airport. See also: September | October | November.

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World North America United States Illinois Chicago O'Hare International Airport

Weather Near Chicago O'Hare International Airport:

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