No
you don't need a jacket based on the weather in Chicago, IL 60639, USA 1 second ago
64°F18°C & Mostly Clear
Wind is 2 mph3 km/h from the NW, gusting to 4 mph7 km/h
| September 21 | ||||
| 8am | 64°F18°C | 2 mph3 km/h NW | Clear | |
| 9am | 67°F19°C | 1 mph2 km/h SW | Clear | |
| 10am | 72°F22°C | 2 mph3 km/h E | Clear | |
| 11am | 77°F25°C | 4 mph6 km/h SE | Mostly Clear | |
| 12pm | 80°F27°C | 5 mph8 km/h SE | Mostly Clear | |
| 1pm | 83°F28°C | 5 mph8 km/h SE | Mostly Clear | |
| 2pm | 85°F30°C | 5 mph8 km/h SE | Mostly Clear | |
| 3pm | 87°F30°C | 5 mph8 km/h SE | Mostly Clear | |
| 4pm | 88°F31°C | 6 mph9 km/h SE | Clear | |
| 5pm | 87°F31°C | 6 mph10 km/h SE | Mostly Clear | |
| 6pm | 86°F30°C | 7 mph11 km/h SE | Mostly Clear | |
| 7pm | 84°F29°C | 6 mph10 km/h SE | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 21 | 64°F18°C | 88°F31°C | 5 mph7 km/h from SE | Mostly Clear | Mostly Cloudy |
| September 22 | 66°F19°C | 75°F24°C | 7 mph12 km/h from W | Rain | Rain |
| September 23 | 62°F16°C | 70°F21°C | 10 mph16 km/h from NE | Mostly Cloudy | Mostly Cloudy |
| September 24 | 61°F16°C | 69°F21°C | 8 mph13 km/h from NE | Rain | Partly Cloudy |
| September 25 | 56°F13°C | 73°F23°C | 6 mph10 km/h from N | Mostly Clear | Mostly Clear |
| September 26 | 56°F14°C | 75°F24°C | 5 mph8 km/h from NE | Mostly Clear | Mostly Clear |
| September 27 | 59°F15°C | 76°F25°C | 6 mph9 km/h from NE | Mostly Clear | Mostly Clear |
No
Low of 65°F19°C, High of 75°F24°CWind: 7 mph12 km/h
Precipitation: 69% rain