Yes

you do need a jacket based on the weather in Antrim BT41, UK 1 second ago

Why? Because it's bitterly cold.
42°F5°C & Cloudy

Wind is 5 mph8 km/h from the W, gusting to 14 mph22 km/h
April 25
1am42°F5°C5 mph8 km/h WDrizzle
2am42°F6°C5 mph8 km/h WCloudy
3am43°F6°C5 mph9 km/h NWCloudy
4am44°F7°C7 mph11 km/h NWCloudy
5am46°F8°C9 mph15 km/h NMostly Cloudy
6am47°F8°C10 mph16 km/h NCloudy
7am47°F8°C10 mph15 km/h NMostly Cloudy
8am48°F9°C9 mph14 km/h NMostly Cloudy
9am49°F9°C8 mph13 km/h NMostly Cloudy
10am49°F10°C8 mph13 km/h NMostly Cloudy
11am49°F10°C8 mph12 km/h NCloudy
12pm49°F9°C7 mph12 km/h NMostly Cloudy
DateLowHighWindDayNight
April 2439°F4°C49°F10°C8 mph12 km/h from NMostly CloudyPartly Cloudy
April 2534°F1°C50°F10°C6 mph9 km/h from NEMostly CloudyMostly Clear
April 2633°F1°C51°F11°C4 mph6 km/h from NEMostly CloudyMostly Clear
April 2736°F2°C52°F11°C8 mph13 km/h from NWPartly CloudyMostly Cloudy
April 2840°F5°C54°F12°C11 mph18 km/h from SDrizzleMostly Cloudy
April 2946°F8°C57°F14°C12 mph19 km/h from SEMostly CloudyMostly Cloudy
April 3046°F8°C60°F16°C9 mph15 km/h from NEPartly CloudyMostly Clear

Yes

Low of 35°F2°C, High of 50°F10°C
Wind: 6 mph9 km/h
Precipitation: 22% rain

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