South Wales Police say driving conditions have proved difficult on high ground in the Rhondda Cynon Taff Area. Certain area of Merthyr, Aberdare, Ferndale, together with the Bwlch and Rhigos mountain roads have been affected with patches of black ice. Motorists are requested to drive with caution.
Icy by night, chilly by day - brace yourself for a cold week ahead.
High pressure keeps the weather chilly by day, icy by night, with an increasing risk of freezing fog.
High pressure this weeks means mainly cold bright days and icy cold nights.