No
you don't need a jacket based on the weather in Joliet, IL, USA 1 second ago
73°F23°C & Clear
Wind is 6 mph10 km/h from the East, gusting to 13 mph21 km/h
| September 18 | ||||
| 10pm | 73°F23°C | 7 mph11 km/h East | Clear | |
| 11pm | 71°F21°C | 7 mph11 km/h East | Clear | |
| September 19 | ||||
| 12am | 69°F21°C | 6 mph10 km/h East | Clear | |
| 1am | 68°F20°C | 6 mph10 km/h East | Clear | |
| 2am | 67°F19°C | 6 mph10 km/h East | Clear | |
| 3am | 66°F19°C | 6 mph9 km/h East | Clear | |
| 4am | 65°F18°C | 5 mph8 km/h East | Mostly Clear | |
| 5am | 64°F18°C | 5 mph8 km/h East | Mostly Clear | |
| 6am | 63°F17°C | 4 mph6 km/h Southeast | Mostly Clear | |
| 7am | 62°F17°C | 4 mph6 km/h Southeast | Mostly Clear | |
| 8am | 62°F17°C | 4 mph6 km/h Southeast | Partly Cloudy | |
| 9am | 66°F19°C | 4 mph6 km/h South | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 18 | 57°F14°C | 88°F31°C | 2 mph3 km/h from Southeast | Mostly Clear | Clear |
| September 19 | 62°F17°C | 85°F29°C | 4 mph7 km/h from South | Mostly Cloudy | Drizzle |
| September 20 | 63°F17°C | 79°F26°C | 5 mph8 km/h from South | Thunderstorms | Drizzle |
| September 21 | 63°F17°C | 76°F25°C | 6 mph10 km/h from Southwest | Drizzle | Drizzle |
| September 22 | 62°F17°C | 77°F25°C | 6 mph10 km/h from Southwest | Drizzle | Drizzle |
| September 23 | 63°F17°C | 77°F25°C | 5 mph8 km/h from Southeast | Rain | Rain |
| September 24 | 64°F18°C | 75°F24°C | 9 mph14 km/h from East | Rain | Drizzle |
No
Low of 62°F17°C, High of 85°F30°CWind: 4 mph7 km/h
Precipitation: 35% rain