Heavy Rain Could Flood Roads in Mississippi Mills Through Wednesday

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boringnews
July 28, 2026 12:55 pm

Mississippi Mills, Ontario is in for a wet couple of days as Environment Canada warns of heavy rainfall that could bring 50 to 100 millimetres through Wednesday morning, July 29.

The special weather statement covers Smiths Falls, Perth, and Eastern Lanark County. A low pressure system is expected to stall over the area, leading to multiple rounds of showers and thunderstorms. Rain amounts will vary widely across the region due to the nature of the storms.

As of mid-morning Tuesday, light rain was already falling in Almonte with a temperature of 20°C and humidity at 96%. Residents should watch for water pooling on roads and in low-lying areas.

While the current alert is not a flood warning, the Mississippi Valley Conservation Authority continues to monitor river levels. As of May, watershed conditions were normal, but heavy rain can change things quickly. The municipality has a flood emergency plan, and sandbags are available year-round for residents at the Roads and Public Works Garage on Old Perth Road.

The soggy weather is expected to ease by Thursday, with clearing skies and a high of 26°C. Friday looks sunny with a high of 28°C. For now, drivers are reminded to slow down, avoid flooded roads, and keep an eye on updated forecasts.

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