No
you don't need a jacket based on the weather in Arlington Heights, IL, USA 1 second ago
70°F21°C & Mostly Clear
Wind is 5 mph8 km/h from the East, gusting to 9 mph15 km/h
| August 1 | ||||
| 10am | 71°F21°C | 6 mph10 km/h East | Partly Cloudy | |
| 11am | 72°F22°C | 9 mph14 km/h Northeast | Mostly Clear | |
| 12pm | 74°F23°C | 10 mph16 km/h Northeast | Mostly Clear | |
| 1pm | 75°F24°C | 11 mph18 km/h Northeast | Mostly Clear | |
| 2pm | 76°F24°C | 11 mph17 km/h Northeast | Mostly Clear | |
| 3pm | 76°F24°C | 11 mph17 km/h Northeast | Mostly Clear | |
| 4pm | 76°F25°C | 11 mph18 km/h Northeast | Mostly Clear | |
| 5pm | 75°F24°C | 11 mph17 km/h Northeast | Clear | |
| 6pm | 74°F23°C | 10 mph17 km/h Northeast | Clear | |
| 7pm | 73°F23°C | 10 mph15 km/h Northeast | Clear | |
| 8pm | 71°F21°C | 8 mph13 km/h Northeast | Mostly Clear | |
| 9pm | 68°F20°C | 6 mph10 km/h Northeast | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| August 1 | 61°F16°C | 76°F25°C | 9 mph15 km/h from Northeast | Mostly Clear | Mostly Clear |
| August 2 | 58°F14°C | 78°F26°C | 6 mph10 km/h from Northeast | Mostly Clear | Clear |
| August 3 | 60°F16°C | 80°F27°C | 6 mph10 km/h from East | Clear | Mostly Clear |
| August 4 | 63°F17°C | 82°F28°C | 6 mph10 km/h from East | Partly Cloudy | Partly Cloudy |
| August 5 | 68°F20°C | 83°F28°C | 6 mph10 km/h from Southeast | Partly Cloudy | Mostly Clear |
| August 6 | 69°F21°C | 85°F29°C | 6 mph9 km/h from Southeast | Partly Cloudy | Mostly Clear |
| August 7 | 71°F22°C | 85°F30°C | 7 mph11 km/h from South | Partly Cloudy | Mostly Clear |
Yes
Low of 57°F14°C, High of 78°F26°CWind: 6 mph10 km/h
Precipitation: None