Yes

you do need a jacket based on the weather in Whitehorse, YT, Canada 1 second ago

Why? Because a jacket will keep you cozy, but you won't break a seat!
58°F14°C & Mostly Cloudy

Wind is 7 mph12 km/h from the South, gusting to 16 mph25 km/h
September 9
11pm57°F14°C8 mph12 km/h SouthMostly Cloudy
September 10
12am54°F12°C7 mph11 km/h SouthMostly Cloudy
1am52°F11°C7 mph11 km/h SoutheastMostly Cloudy
2am50°F10°C7 mph11 km/h SoutheastMostly Cloudy
3am49°F10°C7 mph11 km/h SoutheastMostly Cloudy
4am48°F9°C7 mph11 km/h SoutheastMostly Cloudy
5am48°F9°C7 mph11 km/h SoutheastMostly Cloudy
6am47°F9°C7 mph12 km/h SoutheastCloudy
7am47°F8°C7 mph12 km/h SoutheastCloudy
8am47°F8°C8 mph12 km/h SoutheastDrizzle
9am47°F8°C8 mph13 km/h SoutheastDrizzle
10am47°F8°C9 mph14 km/h SoutheastCloudy
DateLowHighWindDayNight
September 940°F4°C64°F18°C4 mph7 km/h from SouthMostly ClearDrizzle
September 1047°F8°C59°F15°C12 mph19 km/h from SoutheastRainDrizzle
September 1147°F8°C60°F16°C10 mph16 km/h from SouthPartly CloudyMostly Clear
September 1242°F6°C57°F14°C9 mph15 km/h from SouthPartly CloudyPartly Cloudy
September 1340°F4°C58°F14°C6 mph10 km/h from SoutheastPartly CloudyMostly Clear
September 1439°F4°C60°F15°C4 mph6 km/h from SoutheastMostly ClearPartly Cloudy
September 1543°F6°C57°F14°C8 mph13 km/h from SoutheastMostly CloudyMostly Cloudy

Yes

Low of 46°F8°C, High of 59°F15°C
Wind: 12 mph19 km/h
Precipitation: 57% rain

Support This Page