Record-breaking temperatures in the forecast on Friday

A heat warning and a severe thunderstorm watch are in effect for Ottawa. Relief from the hot and humid temperatures is on the way for the weekend.

It's another hot and humid day in Ottawa, with record-breaking temperatures expected for the second straight day.

A heat warning remains in effect for Ottawa, with a high of 31 C expected this afternoon, and the humidex making it feel like 36 degrees.

Environment Canada has also issued a severe thunderstorm watch for Ottawa, saying "conditions are favourable for the development of severe thunderstorms" this afternoon and evening.

The hot weather continues after Ottawa set a new temperature record for June 1. According to Environment Canada, the temperature warmed up to 35.1 C Thursday afternoon. The old record was 29.6 C, set back in 2011.

Environment Canada says relief from the heat is expected overnight and into the weekend.

"Daytime high temperatures are expected to be above 30 degrees Celsius again today. Minimum temperatures tonight will drop below warning criteria into the mid teens, bringing relief from the heat," Environment Canada said in a statement.

"Hot and humid air can also bring deteriorating air quality and can result in the Air Quality Health Index approaching the high risk category."