Yes

you do need a jacket based on the weather in Borden, ON L0M, Canada 1 second ago

Why? Because the rain is just enough to ruin your hairstyle but not your mood and it's cool. Pleasantly cool, but cool and it's fairly windy outside!
51°F10°C & Rain

Wind is 9 mph14 km/h from the Southeast, gusting to 21 mph34 km/h
May 1
6pm51°F10°C9 mph15 km/h SoutheastRain
7pm50°F10°C11 mph17 km/h SoutheastRain
8pm50°F10°C13 mph21 km/h SoutheastCloudy
9pm49°F9°C10 mph16 km/h SouthCloudy
10pm48°F9°C9 mph15 km/h SouthCloudy
11pm50°F10°C10 mph16 km/h SouthCloudy
May 2
12am50°F10°C12 mph19 km/h SouthCloudy
1am52°F11°C9 mph15 km/h SouthCloudy
2am53°F12°C9 mph15 km/h SouthCloudy
3am54°F12°C9 mph15 km/h SouthMostly Cloudy
4am55°F13°C9 mph14 km/h SouthwestMostly Cloudy
5am55°F13°C9 mph14 km/h SouthwestMostly Cloudy
DateLowHighWindDayNight
May 134°F1°C52°F11°C7 mph12 km/h from SoutheastThunderstormsRain
May 244°F6°C60°F16°C12 mph19 km/h from WestMostly CloudyCloudy
May 339°F4°C53°F12°C7 mph11 km/h from NorthCloudyMostly Cloudy
May 437°F3°C61°F16°C7 mph11 km/h from NortheastMostly CloudyMostly Cloudy
May 546°F8°C58°F15°C11 mph17 km/h from EastCloudyCloudy
May 651°F11°C63°F17°C6 mph10 km/h from SouthRainRain
May 746°F8°C65°F19°C10 mph16 km/h from NorthwestPartly CloudyPartly Cloudy

Yes

Low of 44°F7°C, High of 60°F16°C
Wind: 12 mph19 km/h
Precipitation: 24% rain

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