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Ontario's fall 2026 outlook, published by The Weather Network on September 9, 2026, calls for above-normal temperatures and an extended, milder fall, with below-normal precipitation overall and fewer classic fall storms than usual. That sounds like good news for property owners, but the same forecast flags something worth paying attention to: a heightened risk for a couple of high-impact storms even in a drier-than-normal season. For a flood damage cleanup company, that combination, a quiet stretch punctuated by isolated major storms, tends to matter more than a steady wet season would.
If you're dealing with home or property damage due to inclement weather and stormier days in Southern Ontario, contact the Canada Restoration Services team for fast, reliable, and IICRC-certified water damage restoration in Toronto. Our teams specialize in water damage cleanup and mold removal in Toronto, so you can eliminate flood damage as well as secondary damages too.
A Drier Fall Doesn't Mean a Storm-Free One
El Nino is the dominant pattern behind this year's forecast, and it's expected to have a moderating effect on some weather extremes across Ontario. But the same forecast is clear that fewer storms doesn't mean none. A season can finish well below normal on total rainfall and still produce what forecasters describe as a handful of memorable, major storms.
Why a Handful of Storms Still Drives Flood Cleanup Calls
Storm damage doesn't scale down just because the season around it was dry. A single high-impact storm can overwhelm municipal drainage, back up sewers, or push water into basements that have gone years without an issue, especially in older neighbourhoods where infrastructure wasn't built for today's storm intensity. That's usually when calls to a flood cleanup company spike, regardless of how the rest of the season looked on paper.
It's also why a below-normal seasonal average can be misleading for planning purposes. A property owner reading that fall will be drier than usual might assume the flooding risk is lower too, when really the risk is just concentrated into fewer, sharper events.
A Warmer, Extended Fall and Mold Risk
The forecast also points to a longer, milder fall stretching into November and December before winter conditions settle in. That extended window of moderate temperatures can keep indoor humidity levels higher for longer than usual, which is exactly the kind of condition that supports calls for mold removal in Toronto, particularly in basements and attics that are already prone to moisture.
Storm Damage Can Also Disturb Older Building Materials
In older Toronto homes, a major storm or the water damage that follows one can disturb materials that had otherwise sat untouched for decades, including asbestos-containing insulation or flooring. When a storm-related repair touches those materials, asbestos removal in Toronto sometimes ends up part of the same job rather than a separate one.
What This Means for Response Readiness
A delayed start to winter also means the window for fall storm activity simply runs longer than in a typical year. For water damage restoration in Toronto and across Ontario, that translates into staying ready later into the season than the calendar would normally suggest, rather than assuming the risk tapers off once October ends.
None of this changes what actually needs to happen once a storm does hit. The same fast response and full assessment matter just as much in a quiet season with one bad storm as they would in a consistently wet one.
Stay Ready Through a Changing Fall with Canada Restoration Services
We're IICRC-certified and respond within 45 minutes, and we coordinate flood cleanup, mold removal, water damage restoration, and asbestos removal under one team when a storm affects more than one part of a property. For guidance on what to do first after water damage hits, see our post on who should you call first after water damage in Toronto.