Get ready to step back into the sauna.

A heat alert and humidex advisory are in place as Torontonians brace for more hot and humid weather.

Temperatures are expected to hit the mid-30s and humidex values are poised to break the 40 mark, Environment Canada said in a special weather statement.

Some turbulent weather is possible later in the day.

The temperature may hit 35 C in Toronto, where rain and thunderstorms are possible as early as late afternoon and into the evening.

Winds will gust to 50 kilometres-per-hour at about noon before increasing to 70 km/h later in the afternoon.

The UV index will be 7 or high.

Heat record may fall

Monday’s high will flirt with the all-time heat record for July 23. The current record – 34.7 C – was set at Pearson International Airport on July 23, 1999.

Because this kind of heat can be very dangerous for humans and animals, the city is offering the following tips to help people to stay cool and avoid falling ill:

  • Drink lots of cool water even before you feel thirsty
  • Go to air conditioned places, including shopping malls, libraries or community centres
  • Take cool showers or baths or use cool, wet towels to cool down
  • Wear loose, light-coloured, breathable clothing and when outdoors wear a wide-brimmed hat
  • Avoid the sun and stay in the shade or use an umbrella
  • Reschedule or plan outdoor activities during the cooler parts of the day
  • Never leave seniors, children or pets unattended in a car

The heat alert was issued by the city, while the humidex advisory was issued by Environment Canada. This is the city's ninth heat alert of the year.

During a heat alert, the city encourages people to call or visit family, friends and neighbours, especially isolated adults and seniors, to make sure they are OK.

For people who don’t enjoy the heat and humidity, somewhat cooler weather is expected Tuesday.

Normal temperatures for this time of year are highs of 27 C and lows of 17 C.

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