Yes

you do need a jacket based on the weather in Lelystad, Netherlands 1 second ago

Why? Because the wind could blow a wig clean off your head!
68°F20°C & Mostly Clear

Wind is 11 mph18 km/h from the West, gusting to 21 mph33 km/h
September 5
9am68°F20°C11 mph18 km/h WestMostly Clear
10am68°F20°C12 mph19 km/h WestPartly Cloudy
11am67°F20°C12 mph20 km/h WestMostly Clear
12pm67°F19°C12 mph19 km/h WestMostly Clear
1pm66°F19°C10 mph16 km/h WestClear
2pm64°F18°C8 mph14 km/h WestMostly Clear
3pm62°F17°C7 mph11 km/h WestClear
4pm61°F16°C6 mph10 km/h WestClear
5pm59°F15°C5 mph8 km/h WestClear
6pm58°F14°C4 mph7 km/h WestClear
7pm57°F14°C4 mph6 km/h SouthwestClear
8pm56°F13°C4 mph6 km/h SouthwestClear
DateLowHighWindDayNight
September 457°F14°C68°F20°C10 mph16 km/h from WestMostly ClearMostly Clear
September 553°F12°C71°F22°C5 mph9 km/h from SoutheastPartly CloudyMostly Cloudy
September 657°F14°C78°F26°C14 mph22 km/h from SoutheastPartly CloudyPartly Cloudy
September 761°F16°C72°F22°C7 mph12 km/h from WestDrizzleDrizzle
September 856°F14°C69°F21°C6 mph10 km/h from WestPartly CloudyPartly Cloudy
September 954°F12°C72°F22°C7 mph12 km/h from SouthPartly CloudyMostly Cloudy
September 1057°F14°C69°F21°C17 mph27 km/h from SouthwestRainPartly Cloudy

Yes

Low of 54°F12°C, High of 72°F22°C
Wind: 5 mph9 km/h
Precipitation: None

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