Yes

you do need a jacket based on the weather in Halsway, Hayes UB3 3JT, UK 1 second ago

Why? Because the drizzle is not enough rain to call it "raining," but enough to make you a little soggy and too cold for just a hoodie, too warm for a parka!
50°F10°C & Drizzle

Wind is 1 mph2 km/h from the Southeast, gusting to 4 mph6 km/h
April 21
4am51°F11°C2 mph3 km/h SouthCloudy
5am53°F12°C3 mph4 km/h SouthCloudy
6am55°F13°C4 mph6 km/h SouthwestCloudy
7am57°F14°C5 mph7 km/h SouthwestCloudy
8am59°F15°C5 mph9 km/h SouthwestCloudy
9am60°F16°C6 mph9 km/h SouthwestCloudy
10am59°F15°C8 mph13 km/h WestCloudy
11am58°F14°C8 mph12 km/h WestDrizzle
12pm57°F14°C7 mph11 km/h WestCloudy
1pm57°F14°C6 mph9 km/h WestMostly Cloudy
2pm57°F14°C7 mph11 km/h WestMostly Cloudy
3pm55°F13°C4 mph7 km/h WestMostly Clear
DateLowHighWindDayNight
April 2048°F9°C60°F16°C5 mph8 km/h from SouthwestRainPartly Cloudy
April 2143°F6°C60°F16°C8 mph12 km/h from SouthwestMostly CloudyRain
April 2247°F8°C57°F14°C8 mph12 km/h from NortheastDrizzleMostly Cloudy
April 2345°F7°C60°F16°C6 mph10 km/h from NortheastMostly CloudyPartly Cloudy
April 2445°F7°C62°F17°C5 mph9 km/h from SoutheastMostly CloudyMostly Cloudy
April 2544°F7°C64°F18°C5 mph8 km/h from NorthwestPartly CloudyMostly Clear
April 2647°F8°C67°F19°C5 mph8 km/h from WestPartly CloudyPartly Cloudy

Yes

Low of 43°F6°C, High of 60°F16°C
Wind: 8 mph12 km/h
Precipitation: None

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