Yes
you do need a jacket based on the weather in Forest Park, IL 60130, USA 1 second ago
Why? Because it's quite chilly.
47°F8°C & Mostly Clear
Wind is 11 mph18 km/h from the NW, gusting to 27 mph43 km/h
| April 20 | ||||
| 12am | 46°F8°C | 11 mph18 km/h NW | Mostly Clear | |
| 1am | 43°F6°C | 10 mph16 km/h NW | Mostly Clear | |
| 2am | 41°F5°C | 10 mph16 km/h NW | Clear | |
| 3am | 38°F4°C | 9 mph14 km/h NW | Clear | |
| 4am | 37°F3°C | 10 mph15 km/h NW | Clear | |
| 5am | 36°F2°C | 9 mph14 km/h W | Clear | |
| 6am | 34°F1°C | 9 mph14 km/h W | Clear | |
| 7am | 33°F1°C | 9 mph14 km/h W | Clear | |
| 8am | 34°F1°C | 10 mph15 km/h W | Clear | |
| 9am | 36°F2°C | 11 mph17 km/h W | Clear | |
| 10am | 39°F4°C | 12 mph19 km/h NW | Mostly Clear | |
| 11am | 41°F5°C | 12 mph20 km/h NW | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| April 19 | 41°F5°C | 58°F14°C | 9 mph14 km/h from W | Mostly Clear | Mostly Clear |
| April 20 | 33°F1°C | 49°F10°C | 11 mph18 km/h from NW | Partly Cloudy | Partly Cloudy |
| April 21 | 35°F2°C | 59°F15°C | 9 mph14 km/h from W | Mostly Clear | Mostly Clear |
| April 22 | 40°F4°C | 65°F18°C | 10 mph16 km/h from SW | Partly Cloudy | Cloudy |
| April 23 | 47°F8°C | 62°F17°C | 13 mph21 km/h from W | Rain | Drizzle |
| April 24 | 38°F3°C | 51°F11°C | 10 mph16 km/h from NE | Mostly Clear | Partly Cloudy |
| April 25 | 36°F2°C | 56°F14°C | 7 mph11 km/h from E | Mostly Clear | Mostly Cloudy |
Yes
Low of 34°F1°C, High of 49°F10°CWind: 11 mph18 km/h
Precipitation: None