No
you don't need a jacket based on the weather in Gurnee, IL, USA 1 second ago
66°F19°C & Clear
Wind is 6 mph10 km/h from the Southeast, gusting to 14 mph23 km/h
| September 15 | ||||
| 3am | 66°F19°C | 7 mph11 km/h Southeast | Clear | |
| 4am | 65°F18°C | 5 mph9 km/h Southeast | Clear | |
| 5am | 64°F18°C | 5 mph8 km/h Southeast | Clear | |
| 6am | 63°F17°C | 5 mph8 km/h Southeast | Clear | |
| 7am | 63°F17°C | 5 mph9 km/h Southeast | Clear | |
| 8am | 63°F17°C | 6 mph9 km/h Southeast | Clear | |
| 9am | 67°F19°C | 6 mph9 km/h Southeast | Clear | |
| 10am | 70°F21°C | 8 mph12 km/h Southeast | Clear | |
| 11am | 72°F22°C | 8 mph13 km/h Southeast | Clear | |
| 12pm | 74°F24°C | 8 mph14 km/h Southeast | Clear | |
| 1pm | 76°F24°C | 8 mph14 km/h Southeast | Clear | |
| 2pm | 77°F25°C | 8 mph13 km/h East | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 15 | 63°F17°C | 78°F26°C | 7 mph12 km/h from East | Clear | Clear |
| September 16 | 63°F17°C | 79°F26°C | 5 mph9 km/h from East | Mostly Clear | Mostly Clear |
| September 17 | 61°F16°C | 79°F26°C | 5 mph7 km/h from East | Mostly Clear | Clear |
| September 18 | 61°F16°C | 79°F26°C | 6 mph9 km/h from East | Mostly Clear | Partly Cloudy |
| September 19 | 63°F17°C | 76°F24°C | 9 mph14 km/h from East | Partly Cloudy | Partly Cloudy |
| September 20 | 63°F17°C | 72°F22°C | 8 mph13 km/h from East | Partly Cloudy | Partly Cloudy |
| September 21 | 62°F17°C | 77°F25°C | 7 mph11 km/h from South | Drizzle | Mostly Cloudy |
No
Low of 63°F17°C, High of 79°F26°CWind: 5 mph9 km/h
Precipitation: None