No
you don't need a jacket based on the weather in Chicago, IL, USA 16 seconds ago
81°F27°C & Clear
Wind is 6 mph10 km/h from the Southeast, gusting to 11 mph17 km/h
| August 15 | ||||
| 9pm | 80°F27°C | 6 mph9 km/h Southeast | Clear | |
| 10pm | 79°F26°C | 5 mph7 km/h South | Mostly Clear | |
| 11pm | 78°F26°C | 5 mph8 km/h South | Clear | |
| August 16 | ||||
| 12am | 77°F25°C | 6 mph9 km/h South | Mostly Cloudy | |
| 1am | 76°F24°C | 5 mph8 km/h South | Mostly Cloudy | |
| 2am | 75°F24°C | 4 mph7 km/h South | Partly Cloudy | |
| 3am | 76°F24°C | 5 mph8 km/h South | Partly Cloudy | |
| 4am | 75°F24°C | 5 mph8 km/h South | Partly Cloudy | |
| 5am | 75°F24°C | 5 mph8 km/h Southwest | Partly Cloudy | |
| 6am | 74°F24°C | 5 mph8 km/h South | Partly Cloudy | |
| 7am | 74°F24°C | 5 mph8 km/h Southwest | Mostly Cloudy | |
| 8am | 75°F24°C | 5 mph7 km/h Southwest | Mostly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| August 15 | 70°F21°C | 83°F28°C | 6 mph9 km/h from East | Partly Cloudy | Partly Cloudy |
| August 16 | 74°F24°C | 91°F33°C | 6 mph10 km/h from Southwest | Partly Cloudy | Thunderstorms |
| August 17 | 75°F24°C | 86°F30°C | 6 mph9 km/h from Northeast | Mostly Cloudy | Partly Cloudy |
| August 18 | 75°F24°C | 91°F33°C | 8 mph12 km/h from South | Thunderstorms | Thunderstorms |
| August 19 | 73°F23°C | 86°F30°C | 6 mph9 km/h from North | Partly Cloudy | Mostly Cloudy |
| August 20 | 70°F21°C | 76°F25°C | 11 mph17 km/h from North | Cloudy | Partly Cloudy |
| August 21 | 69°F20°C | 79°F26°C | 8 mph12 km/h from Northeast | Mostly Clear | Clear |
No
Low of 74°F24°C, High of 91°F33°CWind: 6 mph10 km/h
Precipitation: 51% rain