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Weekend starts off with a bang in Ontario, storm risk extends into Quebec

Saturday, June 19th 2021, 8:55 pm - The weekend got off to a stormy start in southern Ontario, and there may be more storms Saturday, some severe, with the threat extending into Quebec. However, the risk will diminish in time for a tranquil Father’s Day on Sunday.

Wicked overnight and early-morning storms slammed southern Ontario to roar in the Father's Day weekend, but Saturday mostly offered clearer skies, though with a slight afternoon storm threat. Sunday looks to be a more sedate affair, with warm temperatures, though with some storm threat in the southwest in the evening and overnight hours. A closer look at Father's Day, and a peek More on the storm risk and what to expect on Father’s Day and beyond, below.

SUNDAY: GORGEOUS FATHER'S DAY, STORM THREAT IN EVENING

Father's Day will be a much calmer day across the province. Plenty of sunshine and nearly a carbon copy of Saturday's temperatures – with widespread upper 20s and humidity in place, making them feel like the low- to mid-30s across southern Ontario.

ONSunTemp

However, the evening hours could see thunderstorms push into southwestern Ontario from Michigan after developing in the Midwest. They should reach Windsor in the later part of the evening.

If these storms continue to trend faster, there is the chance for them to reach the border earlier in the evening and possess some larger hail and strong wind gusts.

ONRiskSun

BEYOND: NEXT STORM APPROACHES EARLY WEEK, BRIEF COOLDOWN TO FOLLOW

The calm conditions won’t last long, unfortunately, as the next low-pressure system will track into the upper Great Lakes and northern Ontario Sunday night into Monday. The system will bring a raw, fall-like pattern to start the week, with locally heavy rain and thunderstorms possible.

This storm will drag a cold front across the region late Monday, though the timing is still in question. Temperatures will be very warm and humid weather ahead of the front, followed by rain and thunderstorms, with the potential for strong to severe storms possible. The rain will linger into Tuesday, especially for eastern Ontario. Rain totals could be highly variable across southern areas, but locally heavy rain is possible.

ONTempTues

A shot of chilly weather is likely behind the system on Tuesday, bringing a couple of days of below-seasonal temperatures before warming up again later in the week. Despite the warming trend, forecasters aren't expecting any consistent heat before the end of June, but hot weather may return in early July.

Stay tuned to The Weather Network for the latest updates.

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