No
you don't need a jacket based on the weather in Grand Rapids, MI, USA 10 minutes ago
74°F23°C & Clear
Wind is 1 mph2 km/h from the East, gusting to 3 mph5 km/h
| September 17 | ||||
| 12pm | 76°F24°C | 1 mph2 km/h North | Clear | |
| 1pm | 79°F26°C | 2 mph3 km/h North | Clear | |
| 2pm | 81°F27°C | 2 mph4 km/h North | Clear | |
| 3pm | 83°F28°C | 3 mph4 km/h North | Clear | |
| 4pm | 84°F29°C | 2 mph4 km/h North | Clear | |
| 5pm | 84°F29°C | 3 mph5 km/h Northwest | Clear | |
| 6pm | 83°F28°C | 5 mph7 km/h Northwest | Clear | |
| 7pm | 79°F26°C | 6 mph10 km/h Northwest | Mostly Clear | |
| 8pm | 73°F23°C | 6 mph9 km/h Northwest | Clear | |
| 9pm | 70°F21°C | 5 mph8 km/h Northwest | Clear | |
| 10pm | 68°F20°C | 4 mph6 km/h Northwest | Clear | |
| 11pm | 66°F19°C | 3 mph4 km/h Northwest | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 17 | 54°F12°C | 84°F29°C | 2 mph3 km/h from North | Clear | Clear |
| September 18 | 58°F14°C | 85°F29°C | 4 mph7 km/h from Northwest | Mostly Clear | Mostly Clear |
| September 19 | 61°F16°C | 81°F27°C | 8 mph13 km/h from East | Partly Cloudy | Mostly Clear |
| September 20 | 56°F13°C | 80°F27°C | 9 mph14 km/h from Southeast | Mostly Cloudy | Partly Cloudy |
| September 21 | 58°F14°C | 82°F28°C | 9 mph14 km/h from Southwest | Mostly Cloudy | Drizzle |
| September 22 | 63°F17°C | 77°F25°C | 7 mph12 km/h from Southwest | Drizzle | Drizzle |
| September 23 | 63°F17°C | 74°F24°C | 8 mph12 km/h from Southwest | Drizzle | Mostly Cloudy |
Yes
Low of 58°F15°C, High of 85°F30°CWind: 4 mph7 km/h
Precipitation: None