No
you don't need a jacket based on the weather in Chicago (Chicago Loop), Illinois, United States 4 minutes ago
79°F26°C & Partly Cloudy
Wind is 6 mph9 km/h from the Southwest, gusting to 12 mph19 km/h
| August 15 | ||||
| 10pm | 79°F26°C | 6 mph9 km/h Southwest | Partly Cloudy | |
| 11pm | 78°F25°C | 4 mph6 km/h Southwest | Mostly Cloudy | |
| August 16 | ||||
| 12am | 76°F25°C | 4 mph6 km/h South | Mostly Cloudy | |
| 1am | 76°F24°C | 4 mph7 km/h Southeast | Cloudy | |
| 2am | 75°F24°C | 5 mph8 km/h Southeast | Mostly Cloudy | |
| 3am | 74°F23°C | 5 mph8 km/h South | Mostly Cloudy | |
| 4am | 74°F23°C | 6 mph9 km/h South | Mostly Cloudy | |
| 5am | 74°F24°C | 5 mph8 km/h Southwest | Partly Cloudy | |
| 6am | 74°F23°C | 5 mph7 km/h Southwest | Partly Cloudy | |
| 7am | 74°F24°C | 5 mph8 km/h Southwest | Mostly Cloudy | |
| 8am | 75°F24°C | 4 mph6 km/h Southwest | Partly Cloudy | |
| 9am | 77°F25°C | 4 mph7 km/h South | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| August 15 | 70°F21°C | 84°F29°C | 5 mph9 km/h from Southeast | Partly Cloudy | Partly Cloudy |
| August 16 | 74°F23°C | 91°F33°C | 6 mph10 km/h from Southwest | Mostly Cloudy | Mostly Cloudy |
| August 17 | 74°F23°C | 86°F30°C | 6 mph9 km/h from Northeast | Mostly Cloudy | Partly Cloudy |
| August 18 | 74°F24°C | 91°F33°C | 7 mph12 km/h from South | Thunderstorms | Thunderstorms |
| August 19 | 73°F23°C | 86°F30°C | 6 mph10 km/h from North | Partly Cloudy | Mostly Cloudy |
| August 20 | 70°F21°C | 77°F25°C | 11 mph18 km/h from North | Cloudy | Partly Cloudy |
| August 21 | 69°F20°C | 79°F26°C | 8 mph13 km/h from Northeast | Mostly Clear | Clear |
No
Low of 73°F23°C, High of 91°F33°CWind: 6 mph10 km/h
Precipitation: 41% rain