No
you don't need a jacket based on the weather in Chicago, IL 60660, USA 9 minutes ago
77°F25°C & Clear
Wind is 7 mph11 km/h from the East, gusting to 11 mph17 km/h
| September 18 | ||||
| 7pm | 76°F24°C | 7 mph11 km/h Northeast | Clear | |
| 8pm | 73°F23°C | 6 mph10 km/h Northeast | Clear | |
| 9pm | 72°F22°C | 7 mph11 km/h Northeast | Clear | |
| 10pm | 71°F21°C | 7 mph11 km/h Northeast | Clear | |
| 11pm | 70°F21°C | 6 mph10 km/h East | Clear | |
| September 19 | ||||
| 12am | 69°F21°C | 6 mph10 km/h East | Clear | |
| 1am | 69°F20°C | 5 mph9 km/h East | Clear | |
| 2am | 68°F20°C | 5 mph8 km/h East | Clear | |
| 3am | 68°F20°C | 5 mph7 km/h East | Mostly Clear | |
| 4am | 67°F20°C | 4 mph7 km/h East | Clear | |
| 5am | 67°F19°C | 5 mph7 km/h East | Clear | |
| 6am | 67°F19°C | 5 mph8 km/h East | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 18 | 62°F16°C | 79°F26°C | 4 mph6 km/h from East | Mostly Clear | Clear |
| September 19 | 66°F19°C | 81°F27°C | 6 mph9 km/h from East | Partly Cloudy | Mostly Cloudy |
| September 20 | 66°F19°C | 78°F25°C | 5 mph9 km/h from Southeast | Thunderstorms | Rain |
| September 21 | 66°F19°C | 78°F26°C | 7 mph11 km/h from Southwest | Rain | Rain |
| September 22 | 65°F18°C | 76°F24°C | 5 mph9 km/h from Southwest | Rain | Drizzle |
| September 23 | 66°F19°C | 74°F23°C | 6 mph9 km/h from Northeast | Rain | Rain |
| September 24 | 66°F19°C | 73°F23°C | 9 mph14 km/h from Northeast | Drizzle | Rain |
No
Low of 66°F19°C, High of 82°F28°CWind: 6 mph9 km/h
Precipitation: None