Yes
you do need a jacket based on the weather in Lake Forest, IL, USA 1 second ago
Why? Because just cool enough for a jacket, but not warm enough to ditch it!
50°F10°C & Clear
Wind is 9 mph15 km/h from the West, gusting to 19 mph30 km/h
| November 4 | ||||
| 1am | 49°F10°C | 10 mph16 km/h West | Clear | |
| 2am | 47°F9°C | 10 mph16 km/h West | Clear | |
| 3am | 45°F7°C | 10 mph15 km/h West | Clear | |
| 4am | 43°F6°C | 9 mph14 km/h West | Mostly Clear | |
| 5am | 42°F5°C | 8 mph13 km/h West | Mostly Cloudy | |
| 6am | 40°F4°C | 8 mph13 km/h West | Mostly Cloudy | |
| 7am | 39°F4°C | 8 mph12 km/h West | Cloudy | |
| 8am | 40°F4°C | 7 mph12 km/h West | Mostly Cloudy | |
| 9am | 40°F4°C | 7 mph11 km/h West | Mostly Cloudy | |
| 10am | 40°F4°C | 7 mph11 km/h West | Cloudy | |
| 11am | 40°F4°C | 6 mph10 km/h West | Cloudy | |
| 12pm | 41°F5°C | 6 mph10 km/h Southwest | Mostly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| November 3 | 40°F4°C | 60°F16°C | 9 mph14 km/h from West | Clear | Partly Cloudy |
| November 4 | 39°F4°C | 58°F15°C | 8 mph13 km/h from South | Partly Cloudy | Partly Cloudy |
| November 5 | 41°F5°C | 56°F13°C | 14 mph23 km/h from Northwest | Mostly Clear | Mostly Clear |
| November 6 | 37°F3°C | 54°F12°C | 8 mph13 km/h from South | Mostly Cloudy | Drizzle |
| November 7 | 43°F6°C | 55°F13°C | 11 mph18 km/h from West | Rain | Mostly Cloudy |
| November 8 | 39°F4°C | 47°F8°C | 4 mph7 km/h from Northeast | Drizzle | Rain |
| November 9 | 30°F-1°C | 43°F6°C | 15 mph25 km/h from Northwest | Drizzle | Snow |
Yes
Low of 38°F4°C, High of 58°F15°CWind: 8 mph13 km/h
Precipitation: None