Yes

you do need a jacket based on the weather in Mönchengladbach, Germany 1 second ago

Why? Because it's bitterly cold.
49°F9°C & Mostly Clear

Wind is 14 mph23 km/h from the S, gusting to 29 mph46 km/h
March 28
5pm48°F9°C15 mph23 km/h SWMostly Clear
6pm48°F9°C13 mph22 km/h SPartly Cloudy
7pm47°F8°C12 mph20 km/h SMostly Cloudy
8pm47°F8°C11 mph18 km/h SMostly Cloudy
9pm47°F8°C10 mph17 km/h SMostly Cloudy
10pm46°F8°C10 mph15 km/h SCloudy
11pm46°F8°C10 mph15 km/h SECloudy
March 29
12am45°F7°C9 mph14 km/h SECloudy
1am44°F7°C10 mph16 km/h SECloudy
2am44°F7°C11 mph17 km/h SDrizzle
3am45°F7°C10 mph16 km/h SDrizzle
4am48°F9°C10 mph16 km/h SDrizzle
DateLowHighWindDayNight
March 2742°F6°C54°F12°C12 mph19 km/h from SWRainMostly Cloudy
March 2844°F7°C58°F15°C11 mph18 km/h from SWDrizzleCloudy
March 2946°F8°C65°F18°C11 mph18 km/h from SCloudyMostly Cloudy
March 3043°F6°C60°F16°C5 mph8 km/h from SEMostly CloudyDrizzle
March 3148°F9°C56°F13°C12 mph20 km/h from SDrizzleDrizzle
April 146°F8°C53°F12°C16 mph26 km/h from WDrizzleDrizzle
April 246°F8°C58°F14°C10 mph16 km/h from SRainRain

Yes

Low of 44°F7°C, High of 58°F15°C
Wind: 11 mph18 km/h
Precipitation: 66% rain

Support This Page