Environment Canada issued a snowfall warning for Hay River and the surrounding area, with 10 to 15 cm of snow expected throughout Monday.
"It's just weird." Yellowknife has never had to wait this long for significant snow to stick. Take a look at decades of snowfall data for the city.
Last year, we were skating by now. October in Yellowknife was exceptionally mild, made all the more pronounced after seven relatively chilly falls in a row.
A warmer-than-usual October across much of Canada's North led to a few minor temperature records in NWT communities this week.
Yellowknife could see snow on Monday, Wednesday, and Thursday this week according to Environment Canada's forecast, as could other parts of the NWT.
Up to 80 mm of rain is forecast to have fallen in some parts of the Dehcho by the end of Monday, meteorologists said in an early-morning warning.
Monday was Yellowknife's all-time hottest day, meteorologists say, reaching a high of 32.6C – fractionally warmer than a record set more than 30 years earlier.
A heat warning has been issued for parts of the Sahtu and Beaufort Delta starting Tuesday and lasting until Thursday.
A three-day heat wave is expected to impact Fort Liard, Fort Simpson, Wrigley, Nahanni Butte, Sambaa K'e, and Jean Marie River.
Preliminary data from Fort Smith's airport weather station suggests the NWT's all-time temperature record has been broken. At 3pm, Fort Smith stood at 39.6C.
Yellowknife, Behchokǫ̀, Hay River, Fort Smith, and Fort Resolution all experienced power outages on Wednesday. Some were blamed on lightning strikes.
A severe thunderstorm capable of producing "nickel-size hail and heavy rain" is bearing down on Fort Liard, forecasters said on Tuesday afternoon.