Yes
you do need a jacket based on the weather in Chicago, IL 60620, USA 1 second ago
Why? Because it's not very warm out!
51°F10°C & Mostly Clear
Wind is 4 mph7 km/h from the South, gusting to 12 mph19 km/h
| September 9 | ||||
| 6am | 50°F10°C | 5 mph8 km/h South | Mostly Clear | |
| 7am | 50°F10°C | 5 mph8 km/h South | Mostly Clear | |
| 8am | 50°F10°C | 5 mph8 km/h South | Mostly Cloudy | |
| 9am | 54°F12°C | 6 mph9 km/h South | Mostly Cloudy | |
| 10am | 59°F15°C | 6 mph10 km/h South | Mostly Cloudy | |
| 11am | 64°F18°C | 6 mph10 km/h South | Cloudy | |
| 12pm | 68°F20°C | 7 mph11 km/h South | Cloudy | |
| 1pm | 71°F22°C | 7 mph11 km/h South | Mostly Cloudy | |
| 2pm | 73°F23°C | 6 mph10 km/h South | Cloudy | |
| 3pm | 74°F23°C | 6 mph10 km/h South | Cloudy | |
| 4pm | 74°F24°C | 6 mph10 km/h South | Cloudy | |
| 5pm | 74°F24°C | 6 mph10 km/h South | Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 9 | 50°F10°C | 74°F24°C | 6 mph10 km/h from South | Mostly Cloudy | Partly Cloudy |
| September 10 | 56°F13°C | 78°F26°C | 3 mph5 km/h from Southeast | Partly Cloudy | Partly Cloudy |
| September 11 | 62°F17°C | 78°F26°C | 5 mph8 km/h from Northeast | Mostly Clear | Clear |
| September 12 | 61°F16°C | 83°F28°C | 4 mph7 km/h from South | Mostly Clear | Partly Cloudy |
| September 13 | 65°F18°C | 85°F29°C | 7 mph12 km/h from South | Mostly Cloudy | Mostly Cloudy |
| September 14 | 68°F20°C | 82°F28°C | 6 mph9 km/h from Northeast | Partly Cloudy | Partly Cloudy |
| September 15 | 66°F19°C | 78°F25°C | 6 mph10 km/h from East | Partly Cloudy | Partly Cloudy |
Yes
Low of 56°F14°C, High of 79°F26°CWind: 3 mph5 km/h
Precipitation: None