Last 30°C of the year? Strong winds, sharp temperature drop coming to Alberta

A classic fall storm is set to sweep through Alberta this weekend with cooler temperatures, strong winds, and alpine snow possible

A powerful cold front will bring significant changes to Alberta's weather, with strong winds and a sharp drop in temperatures.

Visit our Complete Guide to Fall 2026 for an in depth look at the Fall Forecast, tips to plan for it and much more!

A developing low pressure system over Alberta will move northward from Friday into Saturday. Ahead of the front, temperatures are set to rise into the upper 20s, with Medicine Hat forecast to hit 30°C Friday afternoon.

Baron - Alberta temperatures Friday - Sept 25

This could mark the season's last 30°C temperature. On average, Medicine Hat experiences 2.9 days with temperatures of 30°C or higher in September.

This warmth is a result of downsloping winds, which will create gusty conditions across southern Alberta.

Baron - Alberta winds Friday 9 pm - Sept 25

Winds between 50-90 km/h are expected Friday, while northern Alberta may experience gusts of 60-80 km/h by Saturday as the low moves into Saskatchewan.

The gusty winds also heighten the risk of power outages.

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Baron - Alberta winds Saturday afternoon - Sept 25

Major temperature drop by Saturday

The passage of the cold front Saturday will bring a dramatic temperature drop, with most areas seeing a decline of 10°C or more.

Baron - Alberta winds Saturday afternoon - Sept 25

Meanwhile, heavy rainfall is forecast for northern Ontario from Friday into Saturday, adding to weather impacts across the region.

RELATED: Some of Canada’s first frost advisories of the season issued

Keep an eye on local forecasts for updates and possible advisories.

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