Yes

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

Why? Because too cold for just a hoodie, too warm for a parka and the wind makes walking forward feel like moonwalking in reverse!
49°F9°C & Cloudy

Wind is 13 mph21 km/h from the East, gusting to 26 mph42 km/h
April 19
7am50°F10°C14 mph23 km/h EastCloudy
8am52°F11°C14 mph22 km/h EastCloudy
9am52°F11°C14 mph22 km/h EastCloudy
10am53°F12°C13 mph22 km/h EastCloudy
11am53°F12°C13 mph21 km/h EastCloudy
12pm52°F11°C13 mph20 km/h EastCloudy
1pm51°F11°C12 mph20 km/h EastCloudy
2pm50°F10°C11 mph18 km/h EastCloudy
3pm48°F9°C10 mph17 km/h EastCloudy
4pm46°F8°C10 mph15 km/h EastCloudy
5pm45°F7°C9 mph14 km/h EastCloudy
6pm44°F7°C8 mph13 km/h EastCloudy
DateLowHighWindDayNight
April 1844°F6°C53°F12°C13 mph21 km/h from EastCloudyCloudy
April 1941°F5°C56°F14°C7 mph12 km/h from EastMostly CloudyPartly Cloudy
April 2040°F4°C56°F13°C6 mph9 km/h from EastDrizzleDrizzle
April 2142°F5°C58°F14°C4 mph7 km/h from SoutheastRainRain
April 2245°F7°C59°F15°C8 mph12 km/h from EastMostly CloudyMostly Cloudy
April 2345°F7°C60°F15°C7 mph11 km/h from EastMostly CloudyPartly Cloudy
April 2447°F8°C61°F16°C7 mph11 km/h from SoutheastDrizzleDrizzle

Yes

Low of 41°F5°C, High of 56°F14°C
Wind: 7 mph12 km/h
Precipitation: None

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