Weather forecast, alerts and UVB index for all South African provinces, 28 June 2021 This forecast is designed to be a quick overview of what lies in store. Weather data provided by the South African Weather Service. For a detailed forecast of your province, click here. Severe Weather Alerts IMPACT-BASED WARNINGS: Orange level 5 warning for RAIN resulting in flooding is expected over the City of Cape Town. Yellow level 2 warning for RAIN resulting in localized flooding is expected over the southern parts of the West Coast, Cape Winelands and Overberg Districts of the Western Cape. Yellow level 2 warning for WIND leading to difficulty in navigation at sea is expected between Cape Columbine and Cape Agulhas.