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.
As some parts of Canada set heat records of more than 45C, Yellowknife residents woke on Tuesday to a heat warning. Here's how those warnings are issued.
Fort Smith is expected to reach at least 37C on Wednesday this week, forecasts suggest. It would be the town's warmest weather in 70 years.
A recent study is revealing more about the science behind the aurora and how the northern lights may differ from their southern cousins.
Hay River, Enterprise, and Fort Smith are being warned to expect persistent, heavy rain throughout Wednesday and into Thursday.
Federal forecasters have issued a severe thunderstorm watch for the Alberta-NWT border, Fort Smith, Fort Resolution, and Highway 6.
Some parts of the NWT could see temperatures above 15C this week. Fort Liard and Fort Smith will be hot spots. Even Yellowknife is set for 11C on Friday.
Some parts of the NWT are about to get a 30-degree swing in temperature, the forecast suggests. Expect highs of 10C or warmer in some communities by Thursday.
Yellowknife is expected to have clear skies on Saturday night and a geomagnetic storm may emerge overhead, setting up what could be perfect aurora-viewing.
Up to 25 centimetres of snow is expected to fall in communities around Great Slave Lake on Saturday night and into Sunday, federal forecasters said.