Yes

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

Why? Because time to get cozy, it's freezing out there!
16°F-9°C & Partly Cloudy

Wind is 8 mph13 km/h from the Northwest, gusting to 19 mph30 km/h
January 8
2am16°F-9°C8 mph14 km/h NorthwestPartly Cloudy
3am15°F-9°C8 mph13 km/h NorthwestPartly Cloudy
4am15°F-10°C8 mph12 km/h NorthwestPartly Cloudy
5am14°F-10°C8 mph12 km/h NorthwestMostly Clear
6am13°F-11°C7 mph12 km/h NorthwestMostly Clear
7am13°F-11°C7 mph11 km/h NorthwestPartly Cloudy
8am13°F-11°C8 mph12 km/h NorthwestMostly Clear
9am13°F-10°C9 mph15 km/h NorthwestMostly Clear
10am14°F-10°C10 mph17 km/h NorthwestClear
11am16°F-9°C11 mph18 km/h NorthwestMostly Clear
12pm17°F-8°C12 mph19 km/h NorthwestMostly Clear
1pm18°F-8°C12 mph20 km/h NorthwestMostly Clear
DateLowHighWindDayNight
January 813°F-11°C19°F-7°C11 mph17 km/h from NorthwestMostly ClearMostly Clear
January 913°F-11°C25°F-4°C10 mph16 km/h from NorthwestClearPartly Cloudy
January 1017°F-9°C29°F-1°C7 mph11 km/h from SouthwestCloudySnow
January 1124°F-5°C31°F-0°C9 mph14 km/h from WestMostly CloudyPartly Cloudy
January 1223°F-5°C31°F-0°C7 mph11 km/h from WestMostly CloudyCloudy
January 1326°F-3°C32°F-0°C5 mph8 km/h from SouthwestCloudyMostly Cloudy
January 1418°F-8°C27°F-3°C14 mph23 km/h from WestMostly CloudyMostly Cloudy

Yes

Low of 12°F-11°C, High of 25°F-4°C
Wind: 10 mph16 km/h
Precipitation: None

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