A new high temperature warning has been issued for 10 counties in Ireland.The Met Éireann Status Yellow high temperature warning is for Clare, Cork, Kerry, Limerick, Tipperary, Galway, Mayo, Kilkenny, Laois and Offaly.It comes come into effect from 1pm on Sunday until 7am on Monday.Met Éireann said there would be maximum temperatures in excess of 27C combined with overnight temperature minimums in excess of 15C.An existing status yellow high temperature warning covering Carlow, Kildare, Kilkenny, Laois, Longford, Meath, Offaly, Westmeath, Wexford, Cork, Limerick, Tipperary and Waterford is in place until 7am on Sunday.Meanwhile, Uisce Éireann has appealed to farms, households and businesses in a number of areas to conserve water during the hot weather.