Yes

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

Why? Because it's bitterly cold.
46°F8°C & Partly Cloudy

Wind is 6 mph9 km/h from the SE, gusting to 12 mph19 km/h
April 26
10pm45°F7°C6 mph9 km/h SEMostly Cloudy
11pm46°F8°C6 mph10 km/h SEMostly Cloudy
April 27
12am46°F8°C7 mph11 km/h SEMostly Cloudy
1am47°F8°C7 mph12 km/h SCloudy
2am49°F9°C8 mph14 km/h SMostly Cloudy
3am51°F10°C9 mph15 km/h SCloudy
4am52°F11°C9 mph15 km/h SCloudy
5am55°F13°C10 mph16 km/h SCloudy
6am58°F14°C11 mph17 km/h SCloudy
7am59°F15°C11 mph18 km/h SCloudy
8am62°F16°C11 mph18 km/h SCloudy
9am62°F17°C11 mph18 km/h SDrizzle
DateLowHighWindDayNight
April 2645°F7°C65°F18°C10 mph17 km/h from SDrizzleCloudy
April 2752°F11°C63°F17°C16 mph25 km/h from SWWindyMostly Cloudy
April 2848°F9°C65°F18°C5 mph9 km/h from SCloudyCloudy
April 2953°F12°C72°F22°C5 mph8 km/h from ERainRain
April 3054°F12°C72°F22°C3 mph5 km/h from WMostly CloudyRain
May 156°F13°C63°F17°C7 mph11 km/h from WRainRain
May 252°F11°C65°F18°C9 mph15 km/h from SWDrizzlePartly Cloudy

Yes

Low of 52°F11°C, High of 64°F18°C
Wind: 16 mph25 km/h
Precipitation: None

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