No
you don't need a jacket based on the weather in Chicago, IL 60638, USA 1 second ago
68°F20°C & Clear
Wind is 4 mph7 km/h from the North, gusting to 14 mph22 km/h
| August 21 | ||||
| 1am | 68°F20°C | 4 mph7 km/h North | Clear | |
| 2am | 67°F20°C | 4 mph7 km/h North | Clear | |
| 3am | 67°F19°C | 4 mph6 km/h North | Mostly Clear | |
| 4am | 66°F19°C | 4 mph6 km/h North | Mostly Clear | |
| 5am | 66°F19°C | 3 mph5 km/h North | Partly Cloudy | |
| 6am | 66°F19°C | 3 mph4 km/h Northeast | Partly Cloudy | |
| 7am | 66°F19°C | 4 mph6 km/h Northeast | Mostly Clear | |
| 8am | 67°F19°C | 4 mph7 km/h Northeast | Mostly Clear | |
| 9am | 69°F21°C | 6 mph10 km/h Northeast | Mostly Clear | |
| 10am | 71°F22°C | 8 mph13 km/h Northeast | Mostly Clear | |
| 11am | 73°F23°C | 9 mph14 km/h Northeast | Partly Cloudy | |
| 12pm | 74°F24°C | 9 mph14 km/h Northeast | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| August 20 | 68°F20°C | 78°F25°C | 8 mph13 km/h from Northeast | Mostly Cloudy | Mostly Clear |
| August 21 | 66°F19°C | 79°F26°C | 8 mph13 km/h from Northeast | Partly Cloudy | Mostly Clear |
| August 22 | 66°F19°C | 81°F27°C | 2 mph4 km/h from Northeast | Partly Cloudy | Mostly Cloudy |
| August 23 | 66°F19°C | 81°F27°C | 7 mph12 km/h from West | Mostly Cloudy | Mostly Clear |
| August 24 | 60°F16°C | 74°F23°C | 9 mph14 km/h from West | Mostly Clear | Mostly Clear |
| August 25 | 55°F13°C | 71°F22°C | 9 mph15 km/h from Northwest | Partly Cloudy | Mostly Clear |
| August 26 | 54°F12°C | 71°F22°C | 7 mph12 km/h from Northwest | Mostly Clear | Mostly Clear |
No
Low of 66°F19°C, High of 79°F26°CWind: 8 mph13 km/h
Precipitation: None