Yes

you do need a jacket based on the weather in Swinton, Manchester, UK 1 second ago

Why? Because it's so windy, your hat will probably launch into orbit!
61°F16°C & Cloudy

Wind is 14 mph23 km/h from the South, gusting to 30 mph48 km/h
July 15
9am61°F16°C14 mph23 km/h SouthRain
10am63°F17°C13 mph21 km/h SouthRain
11am65°F18°C13 mph21 km/h SouthwestRain
12pm64°F18°C13 mph20 km/h SouthwestRain
1pm63°F17°C11 mph17 km/h SouthwestRain
2pm63°F17°C10 mph17 km/h WestRain
3pm62°F16°C10 mph16 km/h WestDrizzle
4pm60°F16°C11 mph17 km/h WestDrizzle
5pm59°F15°C10 mph17 km/h WestDrizzle
6pm58°F15°C9 mph14 km/h WestMostly Cloudy
7pm58°F14°C9 mph14 km/h WestDrizzle
8pm57°F14°C9 mph14 km/h WestCloudy
DateLowHighWindDayNight
July 1455°F13°C65°F18°C11 mph18 km/h from SouthRainRain
July 1557°F14°C71°F22°C7 mph11 km/h from NorthwestMostly CloudyPartly Cloudy
July 1657°F14°C75°F24°C5 mph7 km/h from SouthMostly CloudyDrizzle
July 1761°F16°C75°F24°C5 mph8 km/h from SouthwestDrizzleMostly Cloudy
July 1860°F16°C71°F22°C5 mph8 km/h from SoutheastRainRain
July 1959°F15°C71°F21°C8 mph13 km/h from SouthRainDrizzle
July 2055°F13°C68°F20°C5 mph8 km/h from SouthwestDrizzleDrizzle

Yes

Low of 57°F14°C, High of 71°F22°C
Wind: 7 mph11 km/h
Precipitation: 17% rain

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