No
you don't need a jacket based on the weather in Illinois, USA 1 second ago
72°F22°C & Partly Cloudy
Wind is 4 mph7 km/h from the Northeast, gusting to 9 mph15 km/h
| June 14 | ||||
| 10pm | 71°F22°C | 5 mph7 km/h East | Mostly Cloudy | |
| 11pm | 70°F21°C | 5 mph8 km/h East | Partly Cloudy | |
| June 15 | ||||
| 12am | 69°F20°C | 7 mph11 km/h East | Mostly Clear | |
| 1am | 67°F20°C | 5 mph9 km/h East | Mostly Clear | |
| 2am | 66°F19°C | 5 mph8 km/h East | Mostly Clear | |
| 3am | 65°F18°C | 6 mph10 km/h East | Mostly Clear | |
| 4am | 64°F18°C | 5 mph8 km/h Northeast | Mostly Clear | |
| 5am | 63°F17°C | 5 mph8 km/h Northeast | Partly Cloudy | |
| 6am | 62°F17°C | 5 mph8 km/h Northeast | Mostly Clear | |
| 7am | 62°F17°C | 5 mph9 km/h Northeast | Partly Cloudy | |
| 8am | 64°F18°C | 6 mph9 km/h Northeast | Partly Cloudy | |
| 9am | 67°F19°C | 7 mph11 km/h Northeast | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| June 14 | 64°F18°C | 79°F26°C | 7 mph12 km/h from Northeast | Mostly Cloudy | Mostly Clear |
| June 15 | 62°F17°C | 81°F27°C | 8 mph12 km/h from Northeast | Mostly Cloudy | Mostly Cloudy |
| June 16 | 64°F18°C | 84°F29°C | 5 mph8 km/h from Southeast | Partly Cloudy | Partly Cloudy |
| June 17 | 68°F20°C | 87°F31°C | 9 mph14 km/h from Southwest | Partly Cloudy | Thunderstorms |
| June 18 | 67°F19°C | 80°F27°C | 13 mph20 km/h from Southwest | Rain | Rain |
| June 19 | 64°F18°C | 84°F29°C | 10 mph17 km/h from Northwest | Mostly Clear | Clear |
| June 20 | 67°F19°C | 87°F30°C | 8 mph14 km/h from Southwest | Mostly Clear | Clear |
No
Low of 62°F17°C, High of 82°F28°CWind: 8 mph12 km/h
Precipitation: None