No
you don't need a jacket based on the weather in Chicago, IL, USA 3 minutes ago
62°F16°C & Clear
Wind is 2 mph4 km/h from the West, gusting to 2 mph4 km/h
| September 18 | ||||
| 9am | 64°F18°C | 2 mph3 km/h Southwest | Mostly Clear | |
| 10am | 67°F20°C | 2 mph2 km/h Southwest | Mostly Clear | |
| 11am | 71°F22°C | 2 mph3 km/h South | Mostly Clear | |
| 12pm | 75°F24°C | 2 mph3 km/h Southeast | Mostly Clear | |
| 1pm | 77°F25°C | 4 mph7 km/h East | Mostly Clear | |
| 2pm | 78°F26°C | 6 mph9 km/h East | Mostly Clear | |
| 3pm | 81°F27°C | 6 mph10 km/h East | Mostly Clear | |
| 4pm | 81°F27°C | 7 mph12 km/h East | Clear | |
| 5pm | 80°F27°C | 8 mph12 km/h East | Clear | |
| 6pm | 79°F26°C | 7 mph12 km/h East | Clear | |
| 7pm | 77°F25°C | 7 mph11 km/h East | Clear | |
| 8pm | 74°F24°C | 6 mph9 km/h East | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 18 | 61°F16°C | 82°F28°C | 5 mph8 km/h from East | Mostly Clear | Clear |
| September 19 | 64°F18°C | 83°F28°C | 5 mph8 km/h from East | Partly Cloudy | Cloudy |
| September 20 | 65°F19°C | 78°F25°C | 6 mph9 km/h from Southeast | Rain | Drizzle |
| September 21 | 65°F18°C | 77°F25°C | 6 mph10 km/h from Southwest | Rain | Rain |
| September 22 | 65°F18°C | 76°F24°C | 6 mph9 km/h from Southwest | Rain | Drizzle |
| September 23 | 64°F18°C | 77°F25°C | 5 mph9 km/h from Southeast | Drizzle | Rain |
| September 24 | 65°F18°C | 73°F23°C | 8 mph13 km/h from Northeast | Rain | Drizzle |
No
Low of 64°F18°C, High of 83°F29°CWind: 5 mph8 km/h
Precipitation: None