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Prolonged stretch of hot, humid and dry conditions in Ontario this week

Tuesday, June 16th 2020, 9:01 pm - Temperatures will heat up considerably as we move closer to the weekend.

Southern Ontario will see several days of high humidity and temperatures near or above 30°C as an upper-level ridge locks in. The muggy conditions will intensify throughout the end of the week and there is not much chance of rain until Sunday. Details and timing, below.

Visit our Complete Guide to Summer 2020 for an in-depth look at the Summer Forecast, tips to plan for it and much more


WEATHER HIGHLIGHTS:

  • Extended dry period, lots of sunshine this week
  • Heat, humidity start building mid-week, widespread 30 degrees by Friday
  • Next chance of rain on the weekend
  • Keep on top of weather ALERTS in your area

WEDNESDAY-SATURDAY: NOTHING BUT SUN, HEAT AND HUMIDITY

Temperatures will start to sizzle in Ontario with plenty of sunshine, which will remain entrenched in the province through most of the weekend.

ONTempWed

Daytime highs will hit the mid- to upper-20s across most of southern, central, eastern and parts of northern Ontario. Humidity will creep up as well, making it feel more like the low-30s in some areas.

Thursday will be even warmer, with more areas inching closer to the 30-degree mark, with some locales in the east, north and southwest hitting or exceeding that temperature.

On Friday, much of the south will be firmly locked in the heat, as daytime highs will hit 30°C in most locales, with some possibility reaching 33°C or 34°C. The humidity will make it feel more like the mid-30s across much of the southern half of the province.

ONTempFri

However, while humidity will rise this week, it should remain at comfortable levels until the weekend.

"Extended period of sunshine and a warming trend through the middle of this week. This will give us gorgeous mid-summer weather for the final official days of spring," says Weather Network meteorologist Dr. Doug Gillham.

HumidexSatON

Some tips to keep in mind during the upcoming heat, humidity:

  • Keep house ventilated or cooled
  • Never leave children or pets in vehicle
  • Stay out of the sun, minimal exercise
  • Think of those more vulnerable

LOOK AHEAD: NEXT CHANCE OF RAIN ON SUNDAY, HEAT RELAXES EARLY NEXT WEEK

Forecasters are closely watching the timing of a cold front that will slowly track into the region Sunday, and into early next week, with a few periods of showers and thunderstorms, bringing much needed rain by that time.

The beginning and middle of next week will bring a break from the heat for a few days, along with the potential for unsettled weather at times. Warmer weather is expected to return by end of the week and into weekend.

Stay tuned to The Weather Network for the latest forecast updates.

WHY DOES A CAR HEAT UP SO QUICKLY?

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