Chicago in august: average Weather, Temperature and Climate
Weather in Chicago in august 2025
The weather in Chicago in august comes from statistical datas on the last years. You can view the weather statistics the entire month, but also by clicking on the tabs for the beginning, the middle and the end of the month.
Average weather throughout august
good weather UV index: 6
Weather at 6am
21°C
Clear/Sunny
50% of time
19%
15%
13%
Weather at 12pm
25°C
Clear/Sunny
49% of time
18%
17%
14%
Weather at 6pm
24°C
Clear/Sunny
44% of time
21%
19%
14%
Weather at 3am
21°C
49%
20%
19%
9%
Evolution of daily average temperature and precipitation in Chicago in august
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Chicago in august.
The climate of Chicago in august is good
The weather in august in Chicago is wet (with 222mm of precipitation over 11 days). Unfortunately, the weather conditions is worsening than the previous month since in july there is an average of 236mm of precipitation over 12 days.
The climate quite pleasant around this city the month of august. Temperatures are up to 26°C. In the morning the temperature drops to 21°C. Thus, the mean temperature average on this month of august in Chicago is 23°C. Note that seasonal normals in contrast with those observed in Chicago in august with a maximum record of 35°C in 2021 and a minimum record of 13°C in 2014. You can plan to have about 2 days with temperatures above 30°C, or 6 of the month.
In august in Chicago, the days on average last 13:51. Sunrise is at 04:59 and sets at 18:50.
With a good weather, the month of august is a good month to go in that area in United States.
Seasonal average climate and temperature of Chicago in august
Check below seasonal norms These datas are generated from the weather statements of the last years of the month of august.
| August | |||||
| Outside temperature | |||||
| Average temperature | 23°C | ||||
| Highest temperature | 26°C | ||||
| Lowest temperature | 21°C | ||||
| Highest record temperature | 35°C (2021) | ||||
| Lowest record temperature | 13°C (2014) | ||||
| Number of days at +30°C | 2 day(s) (6%) | ||||
| Number of days at +18°C | 31 day(s) (100%) | ||||
| Sea temperature | |||||
| Average sea temperature | 22.9°C | ||||
| Lowest sea temperature | 21.2°C | ||||
| Highest sea temperature | 24.5°C | ||||
| Wind | |||||
| Wind speed | 17km/h | ||||
| Wind temperature | 21°C | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 222mm | ||||
| Number of days with rainfall | 11 day(s) (35%) | ||||
| Record daily rainfall | 76mm (2016) | ||||
| Other climate data | |||||
| Humidity | 83% | ||||
| Visibility | 9.33km | ||||
| Cloud cover | 25% | ||||
| UV index | 6 | ||||
| Daily sunshine hours | 14 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 04:59 | ||||
| Time of sunset | 18:50 | ||||
| Length of day | 13:51 | ||||
| Our opinion about the weather in august | |||||
| Our opinion at whereandwhen.net | good | ||||
How was the weather last august?
Here is the day by day recorded weather in Chicago in august 2024:
23°C to 29°C
22°C to 25°C
23°C to 28°C
22°C to 29°C
24°C to 27°C
19°C to 22°C
19°C to 24°C
19°C to 25°C
15°C to 22°C
15°C to 23°C
16°C to 25°C
17°C to 20°C
18°C to 26°C
21°C to 26°C
18°C to 24°C
20°C to 28°C
20°C to 23°C
21°C to 24°C
20°C to 23°C
19°C to 21°C
16°C to 22°C
17°C to 24°C
18°C to 27°C
20°C to 29°C
22°C to 29°C
23°C to 32°C
26°C to 35°C
23°C to 26°C
22°C to 26°C
23°C to 29°C
21°C to 26°C
Map: other cities in the United States (USA) in august
Cities near Chicago:
| Illinois in august | good weather |
| Wisconsin in august | good weather |
| Indianapolis in august | good weather |
| Detroit in august | good weather |
| Cincinnati in august | good weather |
| St. Louis (Missouri) in august | good weather |
| Louisville (Kentucky) in august | good weather |
| Cleveland in august | good weather |
| Des Moines in august | good weather |
| Missouri in august | good weather |
| Minneapolis (Minnesota) in august | perfect weather |
| Nashville in august | good weather |
Click over cities on the map for information about the weather in august.
perfect weather
good
tolerable
bad
very bad
Weather data for Chicago in august:
Weather data for Chicago for august are derived from an average of the weather forecast since 2009 in Chicago. There is a margin of error and these forecasts are to be considered as general information only. The weather in Chicago can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Chicago.