Heat warning conditions continue before sharp midweek cooldown

(Source: Sonia McMahon-Comartin)

The first significant heat event of the season continues today, with temperatures soaring to near 30 C and humidex values making it feel more like 36 to 37.

Environment Canada said conditions are expected to persist through the day, with the heat easing later tonight as a cold front moves through the region.

The forecast calls for mainly cloudy skies with a 30 per cent chance of showers late this morning and early this afternoon, before steadier showers begin later in the day. There is also a risk of thunderstorms developing late this afternoon as winds strengthen with gusts up to 60 km/h.

Temperatures may be slightly cooler along lake shores, offering some relief from the heat.

Showers are expected to taper off near midnight, though cloudy conditions and a lingering 40 per cent chance of showers will continue through the night. There is also a continuing risk of thunderstorms early in the evening.

A dramatic change in conditions is expected Wednesday, with clearing skies in the morning and a daytime high of just 11 C and overnight lows will dip to around 1 C under clear skies.

The rest of the week will see more typical spring weather, including sunny conditions Thursday with a high of 17 C, followed by increasing cloudiness and chances of showers heading into Friday and the weekend.