Snow and much cooler temperatures follow a rainy, stormy week in Ontario
A strong cold front is set to sweep into southern Ontario, causing a sharp temperature drop and raising the possibility of late-April snow
Below-normal temperatures and snow chances are returning to Ontario after a week of flooding rain, storms, and unseasonable warmth. A large low pressure system will cross the province, pulling in warm, moist air from the Gulf of Mexico and cold air from the Prairies.
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Sunday will bring much colder conditions, with daytime highs only reaching the mid-single digits. Flurries are expected to develop, including localized lake-effect flurries east of Lake Huron and Georgian Bay. The chill continues into Monday, as temperatures resemble typical mid-March conditions.
Weather Highlights:
System will bring heavy rain to southern and eastern Ontario on Saturday, with snow and icy precipitation in northern regions
By Sunday, a sharp cold front will drop daytime highs to 5°C-8°C
Rain may mix with wet snow Saturday night into Sunday morning, while colder Prairie systems will keep temperatures below normal next week
Cooler temperatures and snow follow stormy week in southern Ontario
On Saturday, southern and eastern Ontario will once again see heavy rain and mild temperatures, while northern Ontario faces snow and icy precipitation from the same system.
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By Sunday, however, a sharp cold front will drop temperatures provincewide.
Cities like Toronto, Ottawa, and Windsor will see daytime highs well below seasonal normals, ranging from 5°C to 8°C. Overnight lows could dip to or below 0°C.
Saturday night into Sunday morning, rain in eastern areas may mix with wet snow. Southern Ontario could also see sporadic rain or snow through Sunday, but no significant accumulation is expected.
While it may feel like spring is retreating, April snowfall is typical, with Toronto and Ottawa averaging 4 cm and 12.2 cm, respectively, this month.
Looking ahead, Ontario’s storm track shifts to colder systems from the Prairies by next week, keeping temperatures near to below seasonal norms. Early next week is forecast to resemble late March. Near-seasonal to cooler-than-seasonal conditions are anticipated to persist into early May.
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Stay tuned to The Weather Network for the latest forecast updates across southern Ontario.