No
you don't need a jacket based on the weather in Chicago, IL 60659, USA 1 second ago
73°F23°C & Mostly Cloudy
Wind is 5 mph8 km/h from the Southwest, gusting to 11 mph17 km/h
| August 13 | ||||
| 2am | 72°F22°C | 5 mph8 km/h Southwest | Mostly Cloudy | |
| 3am | 72°F22°C | 5 mph8 km/h West | Mostly Cloudy | |
| 4am | 71°F22°C | 5 mph8 km/h West | Mostly Cloudy | |
| 5am | 71°F22°C | 4 mph6 km/h West | Partly Cloudy | |
| 6am | 70°F21°C | 4 mph7 km/h West | Clear | |
| 7am | 70°F21°C | 5 mph7 km/h West | Clear | |
| 8am | 71°F22°C | 4 mph7 km/h Northwest | Clear | |
| 9am | 73°F23°C | 5 mph8 km/h North | Clear | |
| 10am | 75°F24°C | 6 mph9 km/h North | Clear | |
| 11am | 77°F25°C | 6 mph10 km/h North | Clear | |
| 12pm | 78°F26°C | 6 mph10 km/h North | Clear | |
| 1pm | 80°F26°C | 6 mph10 km/h North | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| August 13 | 70°F21°C | 82°F28°C | 7 mph11 km/h from Northeast | Clear | Mostly Clear |
| August 14 | 70°F21°C | 81°F27°C | 6 mph10 km/h from Northeast | Clear | Clear |
| August 15 | 69°F21°C | 86°F30°C | 4 mph7 km/h from Southeast | Mostly Clear | Mostly Clear |
| August 16 | 74°F23°C | 91°F33°C | 6 mph10 km/h from Southwest | Partly Cloudy | Mostly Cloudy |
| August 17 | 73°F23°C | 81°F27°C | 9 mph14 km/h from Northeast | Mostly Cloudy | Mostly Cloudy |
| August 18 | 71°F21°C | 82°F28°C | 9 mph14 km/h from Southeast | Drizzle | Mostly Cloudy |
| August 19 | 71°F22°C | 78°F25°C | 7 mph11 km/h from East | Thunderstorms | Mostly Cloudy |
No
Low of 70°F21°C, High of 81°F27°CWind: 6 mph10 km/h
Precipitation: None