Yes

you do need a jacket based on the weather in St. Catharines, ON, Canada 1 second ago

Why? Because too cold for just a hoodie, too warm for a parka and the wind is offering free, unsolicited face massages!
43°F6°C & Clear

Wind is 9 mph15 km/h from the West, gusting to 25 mph40 km/h
November 4
6am43°F6°C10 mph16 km/h WestClear
7am43°F6°C10 mph15 km/h WestClear
8am42°F5°C9 mph14 km/h WestClear
9am41°F5°C9 mph15 km/h WestClear
10am40°F5°C9 mph14 km/h WestClear
11am40°F4°C9 mph15 km/h WestClear
12pm40°F4°C10 mph16 km/h WestClear
1pm42°F6°C12 mph19 km/h WestClear
2pm45°F7°C13 mph21 km/h WestClear
3pm49°F9°C14 mph23 km/h WestClear
4pm51°F11°C15 mph24 km/h WestWindy
5pm53°F12°C16 mph25 km/h WestWindy
DateLowHighWindDayNight
November 439°F4°C55°F13°C13 mph22 km/h from WestMostly ClearMostly Cloudy
November 543°F6°C55°F13°C21 mph33 km/h from SouthwestRainWindy
November 639°F4°C47°F8°C9 mph14 km/h from NorthwestPartly CloudyMostly Cloudy
November 739°F4°C55°F13°C15 mph24 km/h from SouthRainMostly Cloudy
November 841°F5°C50°F10°C8 mph13 km/h from NorthwestCloudyDrizzle
November 939°F4°C51°F10°C10 mph17 km/h from WestDrizzleDrizzle
November 1031°F-1°C39°F4°C12 mph20 km/h from NorthMostly CloudyPartly Cloudy

Yes

Low of 43°F6°C, High of 55°F13°C
Wind: 21 mph33 km/h
Precipitation: 74% rain

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