Scottish Power says that some of the 500 homes are unlikely to be reconnected to the power network tonight. It say it is doing everything it can, but cannot guarantee they will have electricity today.
Llangollen is still the worst affected area with Mold also experiencing problems.
They say that engineers will work as late as possible to reconnect customers.
More top news
Any heavy showers will clear away northeastwards through late evening.
The Scarlets were comprehensively beaten 38-16 by Leinster in Dublin.
Cardiff Blues survived an onslaught from Pau's powerful pack to book a place in the European Challenge Cup final.