The South African Weather Service has issued a Yellow Level 2 warning, which could result in heavy downpours leading to flooding in the Gauteng province.
The Weather Service says there is also a possibility of damaging winds and hail over the southern and central areas of the province.
Forecaster Lehlohonolo Thobela says, You can expect isolated to a scattered chance of showers and thundershowers into the afternoon, covering the North West all the way to parts of KwaZulu-Natal and the southern parts of Limpopo for tomorrow, just isolated showers and thundershowers expected over Gauteng, the North West, as well as into the Free State province.