Yes

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

Why? Because this drizzle is just a polite way of saying, “Get ready, the big stuff's coming.” and the cold's there, but it's just a reminder, not an invasion and it's so windy, your hat has officially retired from your head!
46°F8°C & Drizzle

Wind is 11 mph18 km/h from the West, gusting to 24 mph39 km/h
May 23
7am46°F8°C11 mph18 km/h WestDrizzle
8am47°F8°C11 mph18 km/h WestDrizzle
9am47°F8°C11 mph18 km/h WestDrizzle
10am48°F9°C12 mph19 km/h WestCloudy
11am49°F9°C12 mph20 km/h WestCloudy
12pm50°F10°C12 mph20 km/h WestCloudy
1pm51°F10°C13 mph21 km/h WestCloudy
2pm52°F11°C13 mph22 km/h WestCloudy
3pm53°F11°C14 mph23 km/h WestCloudy
4pm53°F11°C14 mph23 km/h WestCloudy
5pm53°F12°C14 mph22 km/h WestCloudy
6pm52°F11°C13 mph21 km/h WestCloudy
DateLowHighWindDayNight
May 2346°F8°C53°F12°C13 mph20 km/h from WestDrizzleCloudy
May 2445°F7°C57°F14°C10 mph16 km/h from NorthwestDrizzleMostly Clear
May 2544°F7°C59°F15°C7 mph12 km/h from WestDrizzleMostly Clear
May 2645°F7°C68°F20°C3 mph6 km/h from NorthwestMostly ClearPartly Cloudy
May 2748°F9°C68°F20°C6 mph10 km/h from EastMostly CloudyCloudy
May 2853°F12°C69°F20°C9 mph14 km/h from SouthDrizzleMostly Cloudy
May 2955°F13°C66°F19°C9 mph15 km/h from SouthwestDrizzleMostly Cloudy

Yes

Low of 45°F7°C, High of 57°F14°C
Wind: 10 mph16 km/h
Precipitation: 38% rain

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