Heat event feeling like 40 C this weekend for Waterloo Region

(CityNews file photo)

By Josh Piercey

Posted Jul 4, 2025 07:22:43 AM.

Last Updated Jul 4, 2025 12:42:43 PM.

The hot start to the summer season continues in Waterloo Region this weekend.

Environment Canada is warning temperatures are set to increase over the weekend, factoring in the humidex, it could feel like 40 C in the tri-cities. The weather agency is anticipating daytime highs between 31 and 22 C, and overnight temperatures to barely dip, around 21 and 25 C.

Another wave of heat and humidity will move through starting on Saturday, and the warm weather will continue throughout Sunday as well.

“It will be hot and humid,” said 570 Weather Specialist Allister Aalders. ” We’ll have a mix of sun and cloud both days.”

The government body is asking people to be prepared to seek shade or indoors, especially for people at greater risk of heat illness, like older adults and children.

According to Aalders, both Saturday and Sunday will have chances for rain early on Saturday and later into Sunday.

By Monday, a cold front will move in, cooling temperatures to 26 C, but also possibly bringing some thundershowers along with it.

The long-range forecast for Waterloo Region. (Environment Canada)

Submit a Correction

Accessibility Feedback

Top Stories

Stolen vehicles recovered after a pair of break-ins and traffic stop in Kitchener

Waterloo Regional Police have recovered two stolen vehicles and laid charges against a Kitchener man after two residential break-ins. Police say on July 17, members of the Direct Action Response Team...

3h ago

Suspect wanted in Kitchener after young girl approached

Waterloo Regional Police are on the lookout for a man in a suspicious vehicle after a young girl was approached in Kitchener. It happened on July 17 around 1 p.m. in the area of Monarch Woods Drive...

3h ago

Man whose car struck crowd outside Los Angeles club, injuring 30, was shot, attacked by crowd

LOS ANGELES (AP) — A vehicle rammed into a crowd of people waiting to enter a nightclub along a busy boulevard in Los Angeles early Saturday, injuring 30 people and leading bystanders to attack the driver,...

2h ago

CFIA expands salami salmonella recall across six provinces as 86 people reported sick

The Canadian Food Inspection Agency has expanded a recall of several brands of salami and soppressata due to possible Salmonella contamination. The recall now affects 67 types of deli meats sold under...

17h ago

Top Stories

Stolen vehicles recovered after a pair of break-ins and traffic stop in Kitchener

Waterloo Regional Police have recovered two stolen vehicles and laid charges against a Kitchener man after two residential break-ins. Police say on July 17, members of the Direct Action Response Team...

3h ago

Suspect wanted in Kitchener after young girl approached

Waterloo Regional Police are on the lookout for a man in a suspicious vehicle after a young girl was approached in Kitchener. It happened on July 17 around 1 p.m. in the area of Monarch Woods Drive...

3h ago

Man whose car struck crowd outside Los Angeles club, injuring 30, was shot, attacked by crowd

LOS ANGELES (AP) — A vehicle rammed into a crowd of people waiting to enter a nightclub along a busy boulevard in Los Angeles early Saturday, injuring 30 people and leading bystanders to attack the driver,...

2h ago

CFIA expands salami salmonella recall across six provinces as 86 people reported sick

The Canadian Food Inspection Agency has expanded a recall of several brands of salami and soppressata due to possible Salmonella contamination. The recall now affects 67 types of deli meats sold under...

17h ago

Most Watched Today

1:46

Suspect in police custody as 'hijacking' incident at YVR causes delays, diversions

Richmond RCMP says officers arrested a suspect who hijacked a small aircraft and then entered the airspace near Vancouver International Airport (YVR), causing multiple delays at the airport.

2:20

Carney: No evidence anybody has gotten free trade deal with U.S.

The PM says there's little evidence anyone has gotten a free trade deal with the U.S. - suggesting we could still face tariffs even with a deal. One former advisor believes Mark Carney is saying U.S. offers could be worse than no deal.

2:34

Some Canadians seeing delays, rejections for coverage under Canadian dental care plan

The federal dental care plan has expanded, but as Afua Baah explains, some Canadians seem to be struggling to get their procedures covered.

2:49

Mexican, EU leaders condemn Trump's 30% tariffs, stop short of issuing counter measures

Mexico and the EU say they are willing to attempt negotiations with the White House in order to avoid a trade war. Karling Donoghue looks at how leaders are strategizing in an effort to avoid a 30 per cent tariff on all goods imported to the U.S.

2:33

UN says Gazans must choose between being shot or being fed

The United Nations Human Rights office is sounding the alarm of potential international human rights violations taking place at the hands of Israeli forces in Gaza. Karling Donoghue details their latest report.