No
you don't need a jacket based on the weather in Prospect Heights, IL 60070, USA 1 second ago
75°F24°C & Mostly Cloudy
Wind is 5 mph8 km/h from the South, gusting to 11 mph18 km/h
| August 12 | ||||
| 10pm | 75°F24°C | 5 mph8 km/h South | Thunderstorms | |
| 11pm | 74°F23°C | 4 mph7 km/h Southwest | Mostly Cloudy | |
| August 13 | ||||
| 12am | 73°F23°C | 4 mph6 km/h Southwest | Partly Cloudy | |
| 1am | 72°F22°C | 5 mph8 km/h Southwest | Mostly Cloudy | |
| 2am | 72°F22°C | 5 mph9 km/h West | Mostly Cloudy | |
| 3am | 71°F22°C | 4 mph6 km/h Northwest | Mostly Clear | |
| 4am | 70°F21°C | 4 mph7 km/h West | Mostly Clear | |
| 5am | 70°F21°C | 5 mph7 km/h West | Mostly Clear | |
| 6am | 70°F21°C | 4 mph7 km/h Northwest | Mostly Clear | |
| 7am | 69°F21°C | 5 mph8 km/h Northwest | Clear | |
| 8am | 70°F21°C | 5 mph8 km/h Northwest | Clear | |
| 9am | 72°F22°C | 5 mph9 km/h North | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| August 12 | 71°F22°C | 86°F30°C | 4 mph7 km/h from Southwest | Thunderstorms | Thunderstorms |
| August 13 | 69°F21°C | 83°F28°C | 5 mph9 km/h from North | Mostly Clear | Mostly Clear |
| August 14 | 66°F19°C | 82°F28°C | 6 mph9 km/h from Northeast | Mostly Clear | Clear |
| August 15 | 67°F19°C | 87°F30°C | 4 mph7 km/h from South | Mostly Clear | Mostly Clear |
| August 16 | 73°F23°C | 91°F33°C | 7 mph11 km/h from Southwest | Mostly Cloudy | Mostly Cloudy |
| August 17 | 70°F21°C | 81°F27°C | 8 mph13 km/h from Northeast | Mostly Cloudy | Mostly Cloudy |
| August 18 | 69°F21°C | 82°F28°C | 8 mph12 km/h from Southeast | Drizzle | Mostly Cloudy |
No
Low of 69°F21°C, High of 83°F29°CWind: 5 mph9 km/h
Precipitation: None