Weather forecast, alerts and UVB index for all South African provinces, 16 July 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 Very cold conditions are expected over the north eastern high ground of the Eastern Cape. Severe frost is expected over the northern parts of the Eastern Cape, North-West and Free State this morning. Gauteng: The expected UVB Sunburn Index: High. Mpumalanga: Temperature: Morning fog patches along the escarpment, otherwise partly cloudy and cold but cool in place in the Lowveld.