Thunder Bay, ON — Thunder Bay heads into the Victoria Day long weekend with mild temperatures and strong winds on Friday before cooler, cloudier weather arrives. Environment Canada recorded 11.5°C at the airport at 7 a.m., with south-southwest winds gusting to 37 km/h.
The Victoria Day long weekend traditionally marks the unofficial start of summer in Canada, and Thunder Bay residents can expect a typical spring mix of sun, wind, and rain. Friday will be the warmest day with temperatures reaching 22°C under clearing skies after morning showers. Strong southwesterly winds gusting to 70 km/h will make conditions feel cooler. Saturday brings a 60 per cent chance of showers with a high near 14°C, while Sunday and Monday should see a mix of sun and cloud with highs around 15°C. Nighttime lows will dip to 7°C to 9°C. Despite the rain chances, spirits remain high across Northwestern Ontario as spring finally settles in.
Friday’s forecast calls for a high of 22°C with southwest winds gusting up to 70 km/h near noon before showers arrive. The UV index is rated 7, or high, so sunscreen is recommended for those spending time outdoors.
Community members are encouraged to stay informed and share this information with friends and family. Following trusted local news sources helps ensure everyone stays up to date with events and announcements affecting Thunder Bay and Northwestern Ontario.
🔗 Read the original report from NetNewsLedger Weather Desk
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📍 Source: NetNewsLedger Weather Desk · By: NNL Weather Desk · 🗓️ May 15, 2026 · 🏠 ThunderBay.Online
