No
you don't need a jacket based on the weather in Chicago, IL, USA 19 minutes ago
78°F25°C & Clear
Wind is 6 mph10 km/h from the Northeast, gusting to 11 mph18 km/h
| August 13 | ||||
| 3pm | 78°F26°C | 7 mph10 km/h Northeast | Clear | |
| 4pm | 79°F26°C | 7 mph12 km/h Northeast | Mostly Clear | |
| 5pm | 79°F26°C | 8 mph12 km/h Northeast | Mostly Clear | |
| 6pm | 78°F26°C | 7 mph12 km/h Northeast | Mostly Clear | |
| 7pm | 76°F24°C | 8 mph12 km/h Northeast | Partly Cloudy | |
| 8pm | 75°F24°C | 7 mph11 km/h Northeast | Partly Cloudy | |
| 9pm | 73°F23°C | 6 mph9 km/h Northeast | Clear | |
| 10pm | 74°F23°C | 4 mph7 km/h Northeast | Clear | |
| 11pm | 72°F22°C | 4 mph6 km/h Northeast | Clear | |
| August 14 | ||||
| 12am | 72°F22°C | 4 mph6 km/h Northeast | Clear | |
| 1am | 71°F21°C | 3 mph6 km/h Northeast | Clear | |
| 2am | 70°F21°C | 3 mph5 km/h Northeast | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| August 13 | 69°F20°C | 79°F26°C | 6 mph10 km/h from Northeast | Mostly Clear | Clear |
| August 14 | 68°F20°C | 82°F28°C | 6 mph9 km/h from Northeast | Clear | Clear |
| August 15 | 68°F20°C | 88°F31°C | 5 mph7 km/h from South | Mostly Clear | Mostly Clear |
| August 16 | 73°F23°C | 93°F34°C | 6 mph10 km/h from Southwest | Partly Cloudy | Mostly Clear |
| August 17 | 77°F25°C | 89°F32°C | 6 mph10 km/h from North | Mostly Cloudy | Mostly Clear |
| August 18 | 76°F25°C | 93°F34°C | 7 mph12 km/h from Southwest | Partly Cloudy | Thunderstorms |
| August 19 | 72°F22°C | 80°F27°C | 8 mph13 km/h from North | Drizzle | Cloudy |
No
Low of 68°F20°C, High of 82°F28°CWind: 6 mph9 km/h
Precipitation: None