The National Weather Service has issued its first-ever heat advisory for Alaska, covering Fairbanks as temperatures are expected to climb into the mid-80s this weekend.

Winnipeg hit a record daytime high of 35.2 °C (95.36 F) on May 12, 2025, shattering a 67-year-old May 12 temperature record amid Canada’s first heat wave of the year, Environment and Climate Change Canada reports.

Flooding partially blocks traffic at the exit to the E4 highway near Ersnäs, south of Luleå. Unseasonably high temperatures have accelerated snowmelt, leading to overflow in the roadway.

Several seasonal ice roads in the Northwest Territories, including the Wekweeti and Dettah routes, have closed earlier than their long‐term averages, with additional roads on short notice closures due to warming temperatures.