Yellowknife and several other NWT communities were battered on Sunday by sustained winds above 50 km/h and gusts of up to 80 km/h.
A snowfall warning that began for Fort McPherson and Tsiigehtchic on Monday now covers Inuvik and Aklavik.
Heavy snow will roll over the south Mackenzie Delta on Monday evening, forecasters say, before tapering off on Tuesday.
Three quads were swept into the ocean near Paulatuk, the hamlet's mayor said, as record rainfall left creeks running high and water pooling across the hamlet.
The NWT's summer was a little warmer than average. Yellowknife had its second-warmest June ever, July was hot in Inuvik and Fort Liard had a scorching August.
Virtually the entirety of the southern NWT is blanketed in smoke, with air quality advisories stretching across the North Slave, South Slave and Dehcho.
Wildfire smoke is set to reach Wekweètì and Whatì on Monday and drift to Behchokǫ̀ and Gamètì by the evening. Tulita and Fort Good Hope could also be affected.
A heatwave in the first half of July gave Inuvik and Tuktoyaktuk their fourth-hottest temperatures ever recorded, Environment Canada says.
A funnel cloud advisory issued for Yellowknife and the Tłı̨chǫ communities, warning of the possibility of weak tornadoes, ended without any reported incident.
What the heck was that weather? A large wildfire along Great Slave Lake's North Arm just created its own massive thundercloud, experts reported.
A heat warning has been issued for some Beaufort Delta and Sahtu communities as temperatures are expected to reach at least 29 degrees Celsius.
Feels a lot like 1994 in Yellowknife these days. The music might be worse, but the heat is right up there – it's our warmest start to June in nearly 30 years.