No
you don't need a jacket based on the weather in Chicago, IL, USA 3 seconds ago
67°F20°C & Clear
Wind is 4 mph7 km/h from the Northwest, gusting to 7 mph11 km/h
| August 14 | ||||
| 8am | 68°F20°C | 4 mph7 km/h Northwest | Clear | |
| 9am | 71°F22°C | 5 mph8 km/h North | Clear | |
| 10am | 73°F23°C | 5 mph9 km/h North | Clear | |
| 11am | 75°F24°C | 5 mph9 km/h North | Clear | |
| 12pm | 77°F25°C | 6 mph9 km/h Northeast | Clear | |
| 1pm | 78°F25°C | 6 mph9 km/h Northeast | Clear | |
| 2pm | 79°F26°C | 6 mph10 km/h Northeast | Clear | |
| 3pm | 81°F27°C | 6 mph10 km/h Northeast | Clear | |
| 4pm | 81°F27°C | 7 mph11 km/h Northeast | Clear | |
| 5pm | 81°F27°C | 7 mph11 km/h Northeast | Clear | |
| 6pm | 80°F27°C | 6 mph10 km/h East | Clear | |
| 7pm | 79°F26°C | 6 mph10 km/h East | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| August 14 | 67°F20°C | 81°F27°C | 6 mph10 km/h from Northeast | Clear | Clear |
| August 15 | 69°F20°C | 88°F31°C | 5 mph8 km/h from South | Mostly Clear | Mostly Clear |
| August 16 | 74°F23°C | 93°F34°C | 6 mph9 km/h from Southwest | Partly Cloudy | Partly Cloudy |
| August 17 | 76°F24°C | 87°F31°C | 7 mph12 km/h from Northeast | Partly Cloudy | Partly Cloudy |
| August 18 | 74°F23°C | 88°F31°C | 5 mph9 km/h from Southeast | Drizzle | Thunderstorms |
| August 19 | 73°F23°C | 83°F28°C | 6 mph9 km/h from Northwest | Rain | Mostly Cloudy |
| August 20 | 70°F21°C | 77°F25°C | 9 mph15 km/h from Northeast | Mostly Cloudy | Partly Cloudy |
No
Low of 69°F21°C, High of 89°F32°CWind: 5 mph8 km/h
Precipitation: None