Weather rollercoaster to plummet from humid, wet day down to first fall frost

All aboard the weather rollercoaster with a forecast includes the risk of thunderstorms and both a high of 21 C that will feel like 27 and this fall’s first frost.
Environment Canada predicts a few showers and the risk of a thunderstorm will end late Thursday morning before skies clear in the afternoon.
Meanwhile, winds are expected to switch from southeast 20 km/h to southwest 30 gusting to 50 this morning then northwest 30 gusting to 50 by early afternoon.
The temperature, which started