No
you don't need a jacket based on the weather in Joliet, IL, USA 1 second ago
67°F19°C & Clear
Wind is 6 mph10 km/h from the East, gusting to 14 mph23 km/h
| May 15 | ||||
| 2am | 66°F19°C | 7 mph11 km/h Southeast | Clear | |
| 3am | 66°F19°C | 6 mph10 km/h Southeast | Clear | |
| 4am | 66°F19°C | 7 mph11 km/h Southeast | Clear | |
| 5am | 65°F19°C | 7 mph11 km/h Southeast | Mostly Clear | |
| 6am | 65°F18°C | 7 mph11 km/h Southeast | Partly Cloudy | |
| 7am | 66°F19°C | 8 mph12 km/h Southeast | Mostly Cloudy | |
| 8am | 67°F20°C | 8 mph13 km/h Southeast | Partly Cloudy | |
| 9am | 71°F21°C | 10 mph16 km/h Southeast | Partly Cloudy | |
| 10am | 75°F24°C | 11 mph18 km/h Southeast | Mostly Clear | |
| 11am | 77°F25°C | 13 mph20 km/h Southeast | Partly Cloudy | |
| 12pm | 80°F27°C | 14 mph23 km/h South | Mostly Cloudy | |
| 1pm | 82°F28°C | 15 mph24 km/h South | Windy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| May 15 | 65°F18°C | 89°F32°C | 15 mph24 km/h from South | Partly Cloudy | Clear |
| May 16 | 60°F16°C | 84°F29°C | 16 mph26 km/h from Southwest | Windy | Rain |
| May 17 | 54°F12°C | 68°F20°C | 17 mph28 km/h from West | Windy | Partly Cloudy |
| May 18 | 48°F9°C | 71°F21°C | 8 mph13 km/h from North | Mostly Clear | Mostly Clear |
| May 19 | 45°F7°C | 67°F20°C | 11 mph17 km/h from Northeast | Mostly Cloudy | Mostly Cloudy |
| May 20 | 53°F12°C | 69°F20°C | 13 mph20 km/h from East | Rain | Drizzle |
| May 21 | 52°F11°C | 64°F18°C | 14 mph23 km/h from East | Drizzle | Rain |
No
Low of 60°F16°C, High of 84°F29°CWind: 16 mph26 km/h
Precipitation: 14% rain