Yes
you do need a jacket based on the weather in Deerfield, IL 60015, USA 1 second ago
Why? Because it's cool. Pleasantly cool, but cool.
59°F15°C & Mostly Clear
Wind is 6 mph10 km/h from the NE, gusting to 12 mph20 km/h
| May 5 | ||||
| 7pm | 58°F15°C | 6 mph10 km/h NE | Mostly Cloudy | |
| 8pm | 56°F13°C | 5 mph8 km/h NE | Mostly Cloudy | |
| 9pm | 53°F11°C | 4 mph6 km/h E | Mostly Cloudy | |
| 10pm | 51°F10°C | 3 mph5 km/h E | Cloudy | |
| 11pm | 50°F10°C | 3 mph4 km/h E | Mostly Cloudy | |
| May 6 | ||||
| 12am | 49°F9°C | 3 mph5 km/h NE | Cloudy | |
| 1am | 48°F9°C | 3 mph5 km/h NE | Cloudy | |
| 2am | 47°F9°C | 3 mph5 km/h N | Cloudy | |
| 3am | 47°F8°C | 3 mph5 km/h NE | Cloudy | |
| 4am | 47°F8°C | 4 mph6 km/h NE | Cloudy | |
| 5am | 46°F8°C | 4 mph6 km/h NE | Cloudy | |
| 6am | 46°F8°C | 4 mph6 km/h NE | Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| May 5 | 48°F9°C | 61°F16°C | 5 mph8 km/h from NE | Partly Cloudy | Cloudy |
| May 6 | 46°F8°C | 68°F20°C | 7 mph12 km/h from E | Mostly Clear | Partly Cloudy |
| May 7 | 55°F13°C | 75°F24°C | 9 mph14 km/h from S | Rain | Mostly Clear |
| May 8 | 53°F12°C | 73°F23°C | 6 mph10 km/h from SE | Mostly Cloudy | Rain |
| May 9 | 47°F8°C | 58°F14°C | 12 mph19 km/h from N | Drizzle | Partly Cloudy |
| May 10 | 43°F6°C | 58°F14°C | 6 mph10 km/h from N | Mostly Cloudy | Mostly Cloudy |
| May 11 | 46°F8°C | 62°F17°C | 7 mph11 km/h from NW | Rain | Partly Cloudy |
Yes
Low of 46°F8°C, High of 68°F20°CWind: 7 mph12 km/h
Precipitation: None