Yes
you do need a jacket based on the weather in Romeoville, IL, USA 1 second ago
Why? Because it's cool enough your breath is visible, but your nose isn’t red yet!
45°F7°C & Partly Cloudy
Wind is 4 mph7 km/h from the Northwest, gusting to 10 mph16 km/h
| October 31 | ||||
| 2am | 45°F7°C | 5 mph7 km/h Northwest | Partly Cloudy | |
| 3am | 44°F7°C | 5 mph8 km/h West | Cloudy | |
| 4am | 43°F6°C | 5 mph8 km/h West | Cloudy | |
| 5am | 43°F6°C | 6 mph9 km/h West | Cloudy | |
| 6am | 43°F6°C | 6 mph10 km/h Northwest | Cloudy | |
| 7am | 44°F6°C | 7 mph11 km/h Northwest | Cloudy | |
| 8am | 43°F6°C | 8 mph12 km/h Northwest | Cloudy | |
| 9am | 42°F6°C | 8 mph12 km/h Northwest | Mostly Cloudy | |
| 10am | 41°F5°C | 7 mph12 km/h Northwest | Partly Cloudy | |
| 11am | 40°F4°C | 7 mph11 km/h Northwest | Mostly Clear | |
| 12pm | 39°F4°C | 7 mph12 km/h Northwest | Mostly Clear | |
| 1pm | 40°F4°C | 7 mph11 km/h West | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| October 30 | 40°F4°C | 57°F14°C | 4 mph7 km/h from North | Mostly Clear | Mostly Cloudy |
| October 31 | 39°F4°C | 54°F12°C | 9 mph15 km/h from West | Partly Cloudy | Partly Cloudy |
| November 1 | 36°F2°C | 49°F10°C | 5 mph9 km/h from West | Mostly Cloudy | Partly Cloudy |
| November 2 | 35°F2°C | 53°F12°C | 6 mph10 km/h from Southwest | Partly Cloudy | Mostly Cloudy |
| November 3 | 40°F4°C | 58°F14°C | 12 mph19 km/h from West | Mostly Clear | Mostly Clear |
| November 4 | 35°F1°C | 58°F15°C | 7 mph12 km/h from South | Partly Cloudy | Mostly Cloudy |
| November 5 | 44°F7°C | 61°F16°C | 12 mph20 km/h from West | Partly Cloudy | Mostly Clear |
Yes
Low of 39°F4°C, High of 54°F12°CWind: 9 mph15 km/h
Precipitation: None