Yes

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

Why? Because there's a refreshing nip in the air and it's so windy, your hat will probably launch into orbit!
42°F5°C & Cloudy

Wind is 10 mph16 km/h from the Northwest, gusting to 27 mph43 km/h
October 31
8am42°F5°C10 mph17 km/h NorthwestCloudy
9am41°F5°C7 mph12 km/h NorthwestCloudy
10am41°F5°C7 mph12 km/h NorthwestCloudy
11am41°F5°C8 mph13 km/h WestCloudy
12pm41°F5°C10 mph16 km/h NorthwestCloudy
1pm42°F5°C11 mph18 km/h NorthwestCloudy
2pm44°F7°C14 mph22 km/h NorthwestCloudy
3pm46°F8°C18 mph29 km/h NorthwestWindy
4pm48°F9°C20 mph32 km/h NorthwestWindy
5pm49°F9°C21 mph33 km/h NorthwestWindy
6pm49°F10°C21 mph34 km/h NorthwestWindy
7pm49°F10°C21 mph34 km/h NorthwestWindy
DateLowHighWindDayNight
October 3141°F5°C49°F10°C16 mph27 km/h from NorthwestWindyPartly Cloudy
November 138°F3°C50°F10°C9 mph15 km/h from WestMostly CloudyPartly Cloudy
November 234°F1°C53°F12°C7 mph11 km/h from SouthMostly ClearPartly Cloudy
November 340°F5°C49°F9°C15 mph24 km/h from SouthwestRainMostly Clear
November 436°F2°C54°F12°C11 mph18 km/h from WestMostly ClearMostly Cloudy
November 540°F4°C52°F11°C14 mph23 km/h from SouthwestRainDrizzle
November 637°F3°C47°F8°C16 mph25 km/h from NorthwestWindyMostly Clear

Yes

Low of 37°F3°C, High of 50°F10°C
Wind: 9 mph15 km/h
Precipitation: None

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