Thunder Bay Weather Outlook – October 27-29 2025

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THUNDER BAY – WEATHER – From the NetNewsLedger Weather Desk, here’s your local forecast for Monday, October 27th, and a look ahead to the next couple of days.

It’s a crisp and clear start to the morning across the Lakehead, with the temperature sitting around minus two degrees at Thunder Bay Airport. Winds are light from the north-northwest, making it feel closer to minus three with the wind chill.

For today — expect mainly sunny skies and a mild afternoon ahead. Winds will shift to the south at about 20 kilometres an hour, helping to bring in some slightly warmer air. Your high today: 12 degrees, with a UV index of 2 — or low.

Tonight, just a few passing clouds under mostly clear skies, and an overnight low near plus 2.

Looking ahead to Tuesday, skies turn mainly cloudy with a southeast breeze near 20 kilometres an hour. Temperatures remain steady, with a high around 10 degrees. Then on Wednesday, it’s back to sunshine and light winds, with a high near 12 degrees — perfect for late October.


🎙️ In summary:
A chilly but bright start to your Monday, followed by a stretch of pleasant, dry autumn weather through midweek — a great time to get outdoors before November’s chill sets in.

That’s your Thunder Bay Weather Update, from the NetNewsLedger Weather Desk, powered by Environment Canada — keeping you informed across the Lakehead and North Shore.

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