No
you don't need a jacket based on the weather in Wilmette, IL, USA 1 second ago
68°F20°C & Clear
Wind is 6 mph10 km/h from the Northeast, gusting to 11 mph17 km/h
| September 16 | ||||
| 12am | 68°F20°C | 6 mph10 km/h Northeast | Clear | |
| 1am | 68°F20°C | 5 mph9 km/h Northeast | Clear | |
| 2am | 67°F19°C | 5 mph8 km/h Northeast | Clear | |
| 3am | 66°F19°C | 6 mph9 km/h East | Clear | |
| 4am | 65°F18°C | 6 mph10 km/h Southeast | Clear | |
| 5am | 64°F18°C | 5 mph8 km/h Southeast | Clear | |
| 6am | 63°F17°C | 4 mph7 km/h South | Clear | |
| 7am | 64°F18°C | 4 mph6 km/h Southeast | Clear | |
| 8am | 64°F18°C | 3 mph5 km/h Southeast | Clear | |
| 9am | 66°F19°C | 3 mph5 km/h Southeast | Clear | |
| 10am | 70°F21°C | 4 mph6 km/h East | Clear | |
| 11am | 73°F23°C | 4 mph7 km/h East | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 15 | 63°F17°C | 78°F26°C | 2 mph4 km/h from East | Clear | Clear |
| September 16 | 63°F17°C | 78°F26°C | 5 mph8 km/h from East | Clear | Mostly Clear |
| September 17 | 65°F18°C | 79°F26°C | 5 mph7 km/h from Northeast | Clear | Mostly Clear |
| September 18 | 65°F18°C | 80°F27°C | 5 mph8 km/h from East | Mostly Clear | Mostly Clear |
| September 19 | 66°F19°C | 79°F26°C | 6 mph10 km/h from East | Partly Cloudy | Mostly Cloudy |
| September 20 | 66°F19°C | 77°F25°C | 7 mph11 km/h from Southeast | Mostly Cloudy | Partly Cloudy |
| September 21 | 65°F18°C | 82°F28°C | 10 mph16 km/h from South | Mostly Cloudy | Mostly Cloudy |
No
Low of 64°F18°C, High of 79°F26°CWind: 5 mph8 km/h
Precipitation: None