The SA Weather Service says some parts of the Northern Cape, Free State, North West, Limpopo, Mpumalanga and Gauteng will also be affected due to the high-pressure system.

JOHANNESBURG - The South African Weather Service has issued warnings of heatwave conditions with the mercury expected to hit 42°C.

It says some parts of the Northern Cape, Free State, North West, Limpopo, Mpumalanga and Gauteng will also be affected due to the high-pressure system.

Residents have been warned to keep hydrated and to stay in cool areas.

Forecaster Lulama Theme says temperatures in the North-West Province will likely breach 42°C.

“For Gauteng, we looking at a maximum of 37°C over the extreme northern part, and we’re expecting 36°C for Pretoria. For the North West Province, we’re expecting 42°C. These heatwave conditions are expected to persist until Monday.”