Flood threat as very heavy rain continues into Monday morning
Southern Ontario is facing a severe flood threat as heavy rainfall continues to impact the region, with some areas receiving over 75 mm of rain. Authorities have warned residents to avoid flooded roads as the moisture-laden system moves eastward.
Why it matters
Persistent heavy rain poses significant risks to infrastructure and public safety, particularly in regions already saturated from previous weather events.
Forecast Centre The Weather Network Published on Aug. 3, 2026, 12:35 AM Stay alert for pockets of very heavy rainfall across portions of southern Ontario heading into Monday morning
A soggy Sunday across southern Ontario continues overnight as a moisture-laden system slowly pushes through the region.
Some areas had already picked up more than 75 mm of rain through Sunday evening, with more on the way. Beware ponding and localized flooding on area roadways.
Remember, never try to drive across a flooded roadway . It’s impossible to tell how deep the water is until it’s too late.
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Sunday’s active weather even prompted a tornado warning on the Niagara Peninsula, with some reports of damage near Kemptville that may require investigation due to possible rotation in the area.
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