It's fall, which means winter is around the corner! It may be early in the season still, but we have already seen our first -20°C reading.

Only 21 days after Canada's first -10-degree reading in Isachsen, Nvt., we are seeing -20-degree temperatures in Eureka, Nvt.

VISIT OUR COMPLETE GUIDE TO FALL 2025 FOR AN IN DEPTH LOOK AT THE FALL FORECAST, TIPS TO PLAN FOR IT AND MUCH MORE!

These winter temperatures across Northern Canada are thanks to some strong ridging in the upper atmosphere, keeping the cold up north and the warmth down south.

[Eureka, Nunavut: Canadas first -20-degree temperature of the season - Sept. 30, 2025] Eureka, Nunavut: Canadas first -20-degree temperature of the season - Sept. 30, 2025

RELATED: UNDERSTANDING CANADA'S 'FROST ZONES,' AND WHEN THAT FIRST FROST MAY HIT

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