No more frost expected, warm long weekend forecast in Waterloo Region

Humid conditions are set to arrive in southern Ontario over the long weekend. Natasha Ramsahai has more in her seven-day forecast.

By Meredith Bond

Posted May 12, 2026 04:27:29 PM.

Last Updated May 13, 2026 11:47:06 AM.

The Victoria Day long weekend is shaping up to be one of the best weekends of the spring in Waterloo Region, as temperatures are forecast to finally warm up.

A frost advisory that ended Tuesday morning was likely one of the last the region will see, according to CityNews meteorologist Jessie Uppal, as overnight temperatures are also improving.

While temperatures are still slightly below seasonal, the weather is starting to improve this week.

Waterloo Region will see some showers early this evening with steadier rain overnight and isolated thunderstorms.

Light showers and drizzle will continue on and off until mid-Thursday. Wednesday’s temperatures will get up to a high of 12 C and sunny breaks in the afternoon. It will be overcast and cooler on Thursday with a high of 13 C along with some damp conditions.

By Friday, temperatures will be hitting 19 C, accompanied by sunshine as the warmer weather sticks around for the weekend.

The forecast high for Saturday is 24 C with a slight chance of some passing showers.

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Cherry blossoms at Victoria Park. (Josh Piercey/570 NewsRadio)
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